message: Add FC to compare files in appveyor
diff: @@ -48,6 +48,16 @@ set_property(TEST Utils.Bpls.la.Dump
  PROPERTY DEPENDS Utils.C.Writer
  )
  +add_test(NAME Utils.Bpls.la.ValidateFC
  + COMMAND ${CMAKE_COMMAND}
  + -E env FC
  + ${CMAKE_CURRENT_SOURCE_DIR}/TestUtilsCWriter.bplsla.expected.txt
  + ${CMAKE_CURRENT_BINARY_DIR}/TestUtilsCWriter.bplsla.result.txt
  +)
  +set_property(TEST Utils.Bpls.la.ValidateFC
  + PROPERTY DEPENDS Utils.Bpls.la.Dump
  +)
  +
  add_test(NAME Utils.Bpls.la.Validate
  COMMAND ${CMAKE_COMMAND}
  -E compare_files
  