ModTool 2.0

This version brings many breaking changes. Redundant features have been removed and most other features have been completely reworked.

Change log:
-Added shared assets
-Added shared packages
-Improved exporter creation
-Improved mod export process
-Improved mod object management
-Removed ModBehaviour and related classes
-Simplified mod loading
-Added Resource.errors
-Removed API Assemblies
-ModManager no longer refreshes by default
-And more...