MYST3: Opcodes are slightly different of the xbox version
MYST3: Load the language archives for the xbox version
MYST3: Refactor subtitles handling to allow different kinds of subtitles
MYST3: Add support for the xbox movie based subtitles
MYST3: Refactor the variables system to allow remapping the ids
MYST3: Account for the variable mapping differences of the xbox version
COMMON: Add support for reading 64bits values from streams

Taken from xoreos
COMMON: Add getRevTab to FFT
AUDIO: Add the WMA decoder from xoreos

Credits go to DrMcCoy, clone2727 and the ffmpeg authors
Permission is granted by DrMcCoy and clone2727 relicense this
from GPLv3+ to GPLv2+.
MYST3: Plug the WMA decoder, to be used by the Xbox version
MYST3: Load additional archives for the Xbox version
MYST3: Implement Xbox specific opcode 77
MYST3: Map the gamepad state variables to keyboard events
MYST3: The dialog ids are not the same for the Xbox version
MYST3: Refactor the dialog class to allow for different implementations
MYST3: Implement the Xbox style dialogs
MYST3: Implement script helper code 25 "canSave"
MYST3: Refactor the menu class to allow for different implementations
MYST3: Implement the Xbox load and save menu specificities
MYST3: Implement more Xbox input differences