First development of the deploy action (#6)

Deploy js code to an instance of screeps.
Some debugging tools are implemented.

Reviewed-on: #6
Co-authored-by: Philipp Horstenkamp <philipp@horstenkamp.de>
Co-committed-by: Philipp Horstenkamp <philipp@horstenkamp.de>

node_modules/github-from-package/index.js

@@ -0,0 +1,17 @@
+module.exports = function (pkg) {
+    var m;
+    if (m = match(JSON.stringify(pkg.repository))) {
+        return m;
+    }
+    else if (m = match(JSON.stringify(pkg))) {
+        return m;
+    }
+    return undefined;
+};
+
+function match (str) {
+    var m = /\bgithub.com[:\/]([^\/"]+)\/([^\/"]+)/.exec(str);
+    if (m) {
+        return 'https://github.com/' + m[1] + '/' + m[2].replace(/\.git$/, '');
+    }
+}