* made maybequoted_for_script() public
  * added script_fpcres identifier
  * always quote file names for fpcres using double quotes, as it doesn't
    support single quotes (mantis #26866)

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28881 3ad0048d-3df7-0310-abae-a5850022a9f2