[cmake] addons_to_build better regex/exact match handling

Handles regex matching and exact addon matching as separate lists. This allows to
only do regex matches when the exact match has not been found, or an actual regex expression
was provided

Implements an exclusion match regex to exclude an addon/s from building

example usage
ADDONS_TO_BUILD='game.libretro.* -game.libretro.mrboom peripheral.joystick'

game.libretro.mrboom will not build, but game.libretro and game.libretro.2048 will

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