v1.1
improved GUI graphics of all filter modes(free/commercial)
added undo/redo function(free/commercial)
fixed automation bug with some host(free/commercial)
Undo/Redo
When undo/redo is available, button color will be white.
New GUI of V1.1
Multi FIlter
Reso Filter
Step Filter
Filter Bank
Xover Filter
Stereo Filter
Gate Filter
