Release version 0.2.2

Added

• Added feature: find type definition support (yacc)
• Added more file extensions support according to https://www.gnu.org/software/automake/manual/html_node/Yacc-and-Lex.html
  • .yy
  • .y++
  • .yxx
  • .ypp
  • .ll
  • .l++
  • .lxx
  • .lpp

Changed

• Change dollars syntax scope naming
• Simple refactoring, add common files

Bug fixes

• Fixed unable to detect int name[100]; variable name pattern. (yacc)
• Fixed a missing case for start state scope detection (lex)