optimize aggressive tile reduce features in Tileset Editor and Graphic Manager#397

Merged

shinespeciall merged 4 commits intomasterfrom mend_aggressive_tile_reduce

Jul 16, 2022

+185-41

Commits on Jul 10, 2022

some broken code cannot work
shinespeciall
committed

Commits on Jul 11, 2022

several bugfixes to the aggressive tile reduce logic in Graphic Manager
shinespeciall
committed

Commits on Jul 12, 2022

aggressive tile reduce in Tileset Editor works
shinespeciall
committed

Commits on Jul 16, 2022

pop up warning dialog for one exception routine
shinespeciall
committed