factored out PatchProcessor and tried to make the VST multi-instance
Merge branch 'master' of github.com:pingdynasty/OwlSim
Freeverb initial version
Added envelope filter
Merge branch 'master' of https://github.com/mazbox/OwlSim
fixed multi-instance problem
added PatchProcessor.cpp to build
added FreeVerb and Envelope Filter patches