Added pyrate as a direct dependency.

pyrate/tests/common/charts/example_charts/nested_folder/US4VA70M/US4VA70A.TXT

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+NOAA ENC<4E>
+
+NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION
+
+US4VA70M - CHINCOTEAGUE INLET TO GREAT MACHIPONGO INLET
+
+INDEX
+AUTHORITIES
+AIDS TO NAVIGATION
+NOTE A
+WARNING - PRUDENT MARINER
+POLLUTION REPORTS
+SUPPLEMENTAL INFORMATION
+CAUTION - TEMPORARY CHANGES
+CAUTION - LIMITATIONS
+CAUTION - SUBMARINE PIPELINES AND CABLES
+RADAR REFLECTORS
+NOAA WEATHER BROADCASTS
+CAUTION - DREDGED AREAS
+TIDAL INFORMATION
+ADDITIONAL INFORMATION
+
+
+NOTES:
+AUTHORITIES	
+Hydrography and Topography by the National Ocean Service, Coast
+Survey, with additional data from the Corps of Engineers, Geological
+Survey, and U.S. Coast Guard.
+
+
+AIDS TO NAVIGATION
+Consult U.S. Coast Guard Light List for
+supplemental information concerning aids to
+navigation.
+
+
+NOTE A
+Navigation regulations are published in Chapter 2, U.S.
+Coast Pilot 3. Additions or revisions to Chapter 2 are pub-
+lished in the Notice to Mariners. Information concerning the
+regulations may be obtained at the Office of the Commander,
+5th Coast Guard District in Portsmouth, Virginia or at the
+Office of the District Engineer, Corps of Engineers in
+Norfolk, Virginia.
+Refer to charted regulation section numbers.
+
+
+WARNING - PRUDENT MARINER
+The prudent mariner will not rely solely on
+any single aid to navigation, particularly on
+floating aids. See U.S. Coast Guard Light List
+and U.S. Coast Pilot for details.
+
+
+POLLUTION REPORTS
+Report all spills of oil and hazardous substances to the
+National Response Center via 1-800-424-8802 (toll free), or
+to the nearest U.S. Coast Guard facility if telephone com-
+munication is impossible (33 CFR 153).
+
+
+SUPPLEMENTAL INFORMATION
+Consult U.S. Coast Pilot 3 for important
+supplemental information.
+
+
+CAUTION - TEMPORARY CHANGES
+Temporary changes or defects in aids to
+navigation are not indicated. See
+Local Notice to Mariners.
+
+
+CAUTION - LIMITATIONS
+Limitations on the use of radio signals as
+aids to marine navigation can be found in the
+U.S. Coast Guard Light Lists and National
+Geospatial-Intelligence Agency Publication 117.
+Radio direction-finder bearings to commercial
+broadcasting stations are subject to error and
+should be used with caution.
+
+
+CAUTION - SUBMARINE PIPELINES AND CABLES
+Additional uncharted submarine pipelines and
+submarine cables may exist within the area of
+this chart. Not all submarine pipelines and sub-
+marine cables are required to be buried, and
+those that were originally buried may have
+become exposed. Mariners should use extreme
+caution when operating vessels in depths of
+water comparable to their draft in areas where
+pipelines and cables may exist, and when
+anchoring, dragging, or trawling.
+Covered wells may be marked by lighted or
+unlighted buoys.
+
+
+RADAR REFLECTORS
+Radar reflectors have been placed on many
+floating aids to navigation. Individual radar
+reflector identification on these aids has been
+omitted from this chart.
+
+
+NOAA WEATHER RADIO BROADCASTS
+The NOAA Weather Radio stations listed
+below provide continuous weather broadcasts.
+The reception range is typically 37 to 74 kilometers / 20 
+to 40 nautical miles from the antenna site, but can be
+as much as 100 nautical miles / 185 kilometers for stations at
+high elevations.
+
+Norfolk, VA		KHB-37		162.550 MHz
+Salisbury, MD		KEC-92		162.475 MHz
+Heathsville, VA		WXM-57	162.400 MHz
+
+
+CAUTION - DREDGED AREAS
+Improved channels are
+subject to shoaling, particularly at the edges.
+
+
+TIDAL INFORMATION
+For tidal information see the NOS tide table publication or go to http://co-ops.nos.noaa.gov.
+
+
+ADDITIONAL INFORMATION
+Additional information can be obtained at www.nauticalcharts.noaa.gov
+
+
+END OF FILE
+

pyrate/tests/common/charts/example_charts/nested_folder/US4VA70M/US4VA70B.TXT

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+Exclusive Economic Zone (EEZ)
+The EEZ is a zone beyond and adjacent to the territorial sea within which the U.S. has certain sovereign rights and jurisdiction. Under some U.S. laws, the inner limit of the EEZ extends landward to the seaward limit of the states submerged lands. For more information, please refer to the Coast Pilot.
+
+Contiguous Zone
+The Contiguous Zone is a zone contiguous to the territorial sea, in which the United States may exercise the control necessary to prevent and punish infringement within its territory or territorial sea of its customs, fiscal, immigration, cultural heritage or sanitary laws and regulations. For more information, please refer to the Coast Pilot.
+
+Administration Area
+This area covers land, internal waters, and territorial sea. The territorial sea is a maritime zone over which the United States exercises sovereignty extending to the airspace as well as to its bed and subsoil. For more information, please refer to the Coast Pilot.

pyrate/tests/common/charts/example_charts/nested_folder/US4VA70M/US4VA70C.TXT

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+Mariners are warned that numerous uncharted duck blinds, stakes, and fishing structures, some submerged, may exist in the fish trap areas. Such structures are not charted unless known to be permanent.

pyrate/tests/common/charts/example_charts/nested_folder/US4VA70M/US4VA70D.TXT

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+The Inland Navigational Rules Act of 1980 is in effect for vessels
+transiting this area. The seaward boundaries of this area are the COLREGS
+demarcation lines. In the area seaward of the COLREGS demarcation lines, vessels
+are governed by COLREGS: International Regulations for Prevention of Collisions
+at Sea, 1972. The COLREGS demarcation lines are defined in 33 CFR 80.505c,
+33 CFR 80.505d, 33 CFR 80.505e and 33 CFR 505h.
+
+
+NOTE A
+Navigation regulations are published in Chapter 2, U.S.
+Coast Pilot 3. Additions or revisions to Chapter 2 are pub-
+lished in the Notice to Mariners. Information concerning the
+regulations may be obtained at the Office of the Commander,
+5th Coast Guard District in Portsmouth, Virginia or at the
+Office of the District Engineer, Corps of Engineers in
+Norfolk, Virginia.
+Refer to charted regulation section numbers.

pyrate/tests/common/charts/example_charts/nested_folder/US4VA70M/US4VA70E.TXT

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+CAUTION - QUALITY OF BATHYMETRIC DATA
+The areas represented by the object M_QUAL (Quality of data) are approximate
+due to generalizing for clarity. Caution is advised, particularly for nearshore
+navigation or voyage planning. M_QUAL represents areas of uniform quality of
+bathymetric data. The CATZOC (Category of zone of confidence in data) attribute
+of M_QUAL provides an assessment of the overall zone of confidence.