add lexer rule for single-line comments starting with `#`
add lexer rule for single-line comments starting with `#`

also bug fix: newline comment was missing from list of tokens, nonetheless lex still worked w/o complaints.
necozay/tulip-control,necozay/tulip-control,tulip-control/tulip-control,necozay/tulip-control,tulip-control/tulip-control,tulip-control/tulip-control,necozay/tulip-control,necozay/tulip-control,tulip-control/tulip-control