CB-12284 Include project root as additional root for static router

This can be useful in cases where source files that have been transpiled (such as TypeScript files) are located under the project root on a path that mirrors the the transpiled file's path under the platform root, and is pointed to by a map file (otherwise when debugging in a browser, the browser won't be able to find the original source file).

.gitignore

@@ -6,7 +6,7 @@ temp
 .DS_Store
 spec-cordova/fixtures/projects/native
 spec-cordova/fixtures/projects/cordova
-.idea/*
+.idea
 .gitcore
 *.jar
 .vscode

cordova-serve/src/server.js

@@ -55,6 +55,13 @@ module.exports = function (opts) {
         app.use(express.static(opts.root));
     }
 
+    // If we have a project root, make that available as a static root also. This can be useful in cases where source
+    // files that have been transpiled (such as TypeScript) are located under the project root on a path that mirrors
+    // the the transpiled file's path under the platform root and is pointed to by a map file.
+    if (this.projectRoot) {
+        app.use(express.static(this.projectRoot));
+    }
+
     var that = this;
     server.listen(port).on('listening', function () {
         that.port = port;