Run init.js after everything else is initialized

For that, a new hook was added: INIT_DONE

PUBLISHED_FROM=bd3779e1fd55b83f145e4b19c2ed0f907376eba5

Author: dimonomid

mos.yml

@@ -19,8 +19,6 @@ libs:
 
     # libs necessary for the current app
   - origin: https://github.com/mongoose-os-libs/arduino-adafruit-ssd1306
-
-    # mjs should go last, because user script might use some of the other libs
   - origin: https://github.com/mongoose-os-libs/mjs
 config_schema:
   - ["i2c.enable", true]