refactor: moved ROMs into separate folders

frontends/sdl/src/main.rs

frontends/web/ts/gb.ts

res/roms/_headers

res/roms/demo/20y.gb

res/roms/demo/gejmboj.gb

res/roms/demo/pocket.gb

res/roms/game/opus5.gb

res/roms/game/shocklobster.gb

res/roms/game/thebouncingball.gb

res/roms/robots.txt

res/roms/test/dmg_acid2.gb

res/roms/test/firstwhite.gb

res/roms/test/jayro.gb

res/roms/test/paradius/cpu/01-special.gb

res/roms/test/paradius/cpu/02-interrupts.gb

res/roms/test/paradius/cpu/03-op sp,hl.gb

res/roms/test/paradius/cpu/04-op r,imm.gb

res/roms/test/paradius/cpu/05-op rp.gb

res/roms/test/paradius/cpu/06-ld r,r.gb

res/roms/test/paradius/cpu/07-jr,jp,call,ret,rst.gb