Add fast path when use fillRect of a constant (0x000000, 0xFFFFFF, etc) color
Add fast path when use fillRect of a constant (0x000000, 0xFFFFFF, etc) color

openfl/lime,openfl/lime,madrazo/lime-1,madrazo/lime-1,player-03/lime,openfl/lime,MinoGames/lime,MinoGames/lime,player-03/lime,madrazo/lime-1,madrazo/lime-1,openfl/lime,MinoGames/lime,player-03/lime,player-03/lime,madrazo/lime-1,MinoGames/lime,openfl/lime,openfl/lime,player-03/lime,madrazo/lime-1,openfl/lime,player-03/lime,madrazo/lime-1,MinoGames/lime,MinoGames/lime,player-03/lime,MinoGames/lime