Added slowFast and fastSlow.
Added slowFast and fastSlow.

Never again will I have to think about which pow2In and pow2Out I want.

Zomby2D/libgdx,Zomby2D/libgdx,MikkelTAndersen/libgdx,NathanSweet/libgdx,cypherdare/libgdx,stinsonga/libgdx,tommyettinger/libgdx,MikkelTAndersen/libgdx,alex-dorokhov/libgdx,alex-dorokhov/libgdx,cypherdare/libgdx,bladecoder/libgdx,Zomby2D/libgdx,stinsonga/libgdx,Zomby2D/libgdx,NathanSweet/libgdx,alex-dorokhov/libgdx,MikkelTAndersen/libgdx,cypherdare/libgdx,cypherdare/libgdx,libgdx/libgdx,alex-dorokhov/libgdx,libgdx/libgdx,tommyettinger/libgdx,NathanSweet/libgdx,bladecoder/libgdx,tommyettinger/libgdx,tommyettinger/libgdx,libgdx/libgdx,libgdx/libgdx,stinsonga/libgdx,cypherdare/libgdx,bladecoder/libgdx,NathanSweet/libgdx,tommyettinger/libgdx,MikkelTAndersen/libgdx,MikkelTAndersen/libgdx,alex-dorokhov/libgdx,NathanSweet/libgdx,bladecoder/libgdx,stinsonga/libgdx,alex-dorokhov/libgdx,Zomby2D/libgdx,libgdx/libgdx,alex-dorokhov/libgdx,MikkelTAndersen/libgdx,MikkelTAndersen/libgdx,stinsonga/libgdx,bladecoder/libgdx,alex-dorokhov/libgdx,MikkelTAndersen/libgdx