[FEAT] Basic parsing of GSQL

[DavidBakerEffendi]

Is your feature request related to a problem? Please describe.
Posting source code to a TigerGraph server to then get a response to show on the front-end requires a whole TG server up. It would be much better to have this parsing done locally.

Describe the solution you'd like
Right now I'd just be happy with very basic parsing, or even fuzzy parsing using something like PEG.js. To avoid this being an epic, nothing even has to be given to the front-end yet as long as this works. Once this is in, one can build upon this.

Additional context
The TigerGraph EBNF is here