RSM

.......... [DEV-1227] Go lang metric (vfs.file.regexp[file,regexp,<encoding>,<start line>,<end line>,<output>])

* commit '0800b5907a519ad461d7cfed33784a4f651ce24e':
  .......... [DEV-1227] corrected error message
  .......... [DEV-1227] corrected build flags
  .......... [DEV-1227] correction for unmatched groups
  .......... [DEV-1227] reworked regular expression parsing, added test case
  .......... [DEV-1227] added test
  .......... [DEV-1227] Update with regexp and output template
  .......... [DEV-1227] Go lang metric (vfs.file.regexp[file,regexp,<encoding>,<start line>,<end line>,<output>])