Visible and sensible changes:
- Added an editor for quantized image
- Added a loading option to LOAD_BLANK for quantized image
- Added TRI, TRIFILL functions to draw triangles
- Added QUAD, QUADFILL functions to draw quadrangles
- Added IGET, ISET functions to access quantized image
- Added a new constructor to VEC2
- Fixed a crash bug with invalid collection index
- Fixed a color interpolation bug
Transparent changes:
- Fixed a memory leak with invalid invoking
- Fixed a palette color setting issue