Minor improvement to enable optional skipping of objects during copies.
Stewart Brodie authored
Detail:
  If the system variable Filer_Action$Skip is set (to anything - even the
    null string), then during a Copy operation, Filer_Action will skip
    directories called "CVS" and files called "/cvstag".  Variable is read
    whenever Filer_Action desktop task starts (ie. at the start of each
    copy).  This dramatically reduces the time it takes to copy a checkout
    tree from NFS->RISC OS.
Admin:
  Tested in desktop build.

Version 0.44. Tagged as 'FilerAct-0_44'
3ff4293f