Super Metroid OneMind

[FreyasSpirit]

Two players, two controllers, control transfers between players every second.  We saw lttp OneMind and decided that super metroid needs this as well.

Currently only supports both players using the same control scheme.

Parts of samus change color from green to blue to indicate which player has control.  The visual aspect can probably be improved if we spend more time figuring out the best way to change samus' palette.

Currently has only been tested in Ceres, but a full game test will happen on Thursday.