npm scripts added and Readme added

Readme.md

@@ -0,0 +1,25 @@
+install libraries:
+```bash
+npm install
+```
+
+compile for all platforms:
+```bash
+npm run compile
+```
+
+compile for linux:
+```bash
+npm run compile-linux
+```
+
+compile for windows:
+```bash
+npm run compile-win
+```
+
+compile for mac:
+```bash
+npm run compile-mac
+```
+