Built-in Keymapper to launch game-specific profiles

[damageinc86]

One of the last features that is keeping a lot of people using rocketlauncher is the integration of a keymapping utility that you can point to a keymapping program (e.g., joy2key.exe) select a game, create/edit/save profile, and then when launching the game the associated profile is automatically launched. With recent advances in PAUSE and FADE plug-ins, this is the last major feature that we need for LB/BB to jump from Rocketlauncher.