Godot support

Now the app supports Godot archive format .pck

Inside archive all assets are stored in the 'res://.import' folder.

Supported formats inside .pck archive:

Images

1. stex 
2. image

Audio

1. mp3str
2. oggstr

Text

1. tscn
2. remap
3. tres
4. import
5. gdns
6. shader