dumbdec: small caps change

This makes sure stereo is preferred

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>
baseclass: more log output

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>
openmpt: added mono & quad and floating point support

Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>