Minor mod.  Link pdspy to static C API library
Minor mod.  Link pdspy to static C API library

Link _pds.so against libpds.a, instead of libpds.so.  This makes the swig-wrapped _pds.so very slightly larger, but means that it has no runtime dependencies on the location of libpds.so.

paul-breen/plc-data-server,paul-breen/plc-data-server,paul-breen/plc-data-server