IPT2 integration fix, internal refactors

0.4.1

- refactoring
- TLM 14.4 compatibility

0.4.0

- stop error logs when IPT2 not installed

- update thumbnail

- refactoring changes to separate game "bridge" logic from rendering logic.

C:S 1.15.x compatability - thanks krzychu124

Made window draggable, start it in centre of screen

Include Harmony API in release

Add close button

Remove IPT2 dependency, fix compatibility with FPS Booster