added build and dist dir to .gitignore
added build and dist dir to .gitignore

BmanisKing/Mine,jay-johnson/pyNES,MSylvia/pyNES,AsSheng/pyNES,NickDeckerDevs/pyNES,fufufanatic/pyNES,gutomaia/pyNES,imanmafi/pyNES,bradparks/pyNES__python_8bit_nes_games_nintendo,DaTrollMon/pyNES,danielserva/pyNES,GrimDerp/pyNES,JohnKossa/pyNES,edwardpark/pyNES,bigpete/pyNES,jmgaya/pyNES,tekromancr/pyNES,kod3r/pyNES,Gybes/pyNES,Militree/pyNES,sperez4mba/pyNES,stellatigre/pyNES,shekkbuilder/pyNES,arabenjamin/pyNES,silky/pyNES,shaunstanislaus/pyNES,kubov/pyNES,ftick/pyNES