Allow CPack generator to be set on the cmdline
Allow CPack generator to be set on the cmdline

Allow commandline Cpack generator setting arguments to override default so we are not forced to always build debs on rpm based systems or vise versa

tacketar/lstore,PerilousApricot/lstore,tacketar/lstore,tacketar/lstore,accre/lstore,accre/lstore,PerilousApricot/lstore,PerilousApricot/lstore,accre/lstore,tacketar/lstore,PerilousApricot/lstore,accre/lstore