added a nes composer example test
added a nes composer example test

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