moved vst sdk location

moved vst sdk location from respective folders within /lib/sdk to
respective folders within /lib
(we're not currently using the 3.x sdk so it's commented out)
added linux build scripts.

added linux build scripts although most folks using VST plugins in Linux
are using Windows DLL's via Wine.
added app config and automated fx parameter handling

added config for app defaults and constants and added wrapper for
automated handling of pre-configured effect parameters.
added vst code wrappers

Added VST code wrappers.  At this point, we have enough to start
building a vst 2.4 plugin.