support xmi options for conversion
added addition exposed option
better handling of options
WIP, but we managed to remove the WildMidi_SetMasterVolume
WIP, break
WIP: removed setconversionoptions
WIP: it all works, no more global conversion options but warnings remain
fixed some clang issues
working through the options
set our default values
switched back to original plan, now using global options
Merge branch 'options'