Request for language support: Constraint Grammar / cg3

[unhammer]

Thanks for making cloc, very nice tool :-) I'd like to request support for:

• language name: Constraint Grammar (Wikipedia article)
• file extension(s): .cg3, .rlx
• method(s) of commenting text: shell-style #
  • but not inside double-quoted strings "like#this"
  • there are no single-quoted strings
  • the # must be at start of line or preceded by whitespace, e.g. in the line LIST kh#fv = pres pret; there is no comment
• location of sample code: https://raw.githubusercontent.com/apertium/apertium-dan/master/apertium-dan.dan.rlx

[AlDanial]

I didn't add logic to support # within double quotes because a line of code with a string will be counted as code regardless of whether or not it contains a #. Regular shell rules seem sufficient.