Support all-typescript tooling with ts-node

The ts-node allows to execute build scripts written in TypeScript
so the entire project could be written in TypeScript.
This commit introduces support for ts-node, updates packages
and migrate copy routine to TypeScript

Thanks!

copyStaticAssets.ts

@@ -0,0 +1,5 @@
+const shell = require("shelljs");
+
+shell.cp("-R", "src/public/js/lib", "dist/public/js/");
+shell.cp("-R", "src/public/fonts", "dist/public/");
+shell.cp("-R", "src/public/images", "dist/public/");