Per-module audio profiles?

[nyanpasu64]

Should add a way to enable on a per-module basis:

• Don't exponentially reduce volume levels when enabling more expansion chips
• Make VRC7 decrease volume when enabling more expansion chips
• Change 2A03 mixing levels and nonlinear mixing equation to match hardware
• Pick which VRC7 patch set to use? (old OPLL patches for old modules, new hardware-ripped patches, etc... is it useful to add a brand-new flag for restoring long-dead patches used in years-old modules? It would also be useful for new fantasy-chip modules I suppose.)
• etc.

[pinobatch]

NSFe has chunks VRC7 and mixe that could handle some of those, though not relative balance within the TND pin.