Revert "Revert "Revert "[3/3] AudioFX: Add center frequency param to bassboost"""

This reverts commit 1a0df5ef229f793a353767e9ce0fc1d2aa7ee980.
Revert "Revert "Revert "[3/3] AudioEffect: Add a stereo widener effect"""

This reverts commit eb1950b5299ea3d9e9b15ee590b0a5e437210375.