Prevent expansion loading when changing presets

[d.healey]

In Rhapsody I have buttons to load previous/next presets and I have stay in folder set to false.

However I just noticed that after all the presets in the current expansion have been loaded it then loads up the next expansion.

I don't want this. I always want to remain in the expansion the user loaded.

This is an easy fix for me by commenting out some chunks of the MainController::UserPresetHandler::incPreset() function. However I'd like a more friendly way to do this. @Christoph-Hart Would a preprocessor definition be appropriate here?

[Christoph Hart]

@d-healey actually I think we can just tie it to whether the FullInstrument expansion mode is active or not because I can‘t see a use case where you would want to load the next library when you press on next user preset.

[EDELWEYS]

@d-healey Good day everyone! I want to thank you. And teach me a little programming.

[d.healey]

@Christoph-Hart https://github.com/christophhart/HISE/pull/449