*par.c: ppi_claim and ppi_release definitions now in a Windows header file
*ppi.c: Only included if you are building for Windows
*win_ppdev.h: Initial Commit, see par.c
CV: ----------------------------------------------------------------------
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@549 81a1dc3b-b13d-400b-aceb-764788c761c2