Tree-sitter based parser plugin

[Aneesh Kumar]

I finished a tree-sitter based parser plugin which can be found here
https://github.com/kvaneesh/tree-sitter-gtags-parser . For now, the

project only supports C language. But other languages can be easily added

by including queries for those. Language-specific queries can be found
in the tree-sitter repo. Forex: cpp can be found here
https://github.com/tree-sitter/tree-sitter-cpp/blob/master/queries/tags.scm

-aneesh