except for wram.asm and sram.asm also delete unused yellow file
Doesn't build.
Use OPP_ constants separate from trainer constants since valid opponents can be all Pokemon and trainers
Conflicts: gfx/intro_nido_1.6x6.png gfx/intro_nido_2.6x6.png gfx/intro_nido_3.6x6.png gfx/redgreenversion.png text.asm text/maps/cerulean_trade_house.asm text/maps/copycats_house_1f.asm text/maps/daycare_2.asm text/maps/museum_2f.asm text/maps/oaks_lab.asm text/maps/pewter_gym.asm text/maps/route_9_1.asm text/maps/school.asm text/maps/vermilion_gym_1.asm yellow/main.asm