better restrictions on sample search paths for EXS24

Better, more restrictive patch search settings that work as advertised. I want to designate a fixed search path and never ever ever have Logic ask me again if I want the sample from somewhere else.

I've tried to restrict search paths in the project window, but Logic always seemed to search outside the restrictions anyway. I finally disabled the project by default because it slowed down Logic in ways that didn't justify having it active. I'd like to have a preference elsewhere that forced logic to restrict ALL searches to a few user-defined paths.