Can colm have the ability to read src/grammar.json from tree-sitter ?

[mingodad]

There is good amount of grammars written for tree-sitter and all of then have a standard 'src/grammar.json' describing then in an uniform way, would be nice if colm could read those grammar definitions to work with and also if it could output then in the EBNF format used in https://www.bottlecaps.de/rr/ui to help visualize/develop then .

Thank for your great work so far !