Adding a sample file with some more complex expression parsing stuff
Adding temporary grammar generation script
Adding some test grammars in both formats.  these grammars should be equivalent
Some temporary changes to the Hermes grammar files.  The hermes.zgr is a bit out of date with respect to expression grammar parsing but grammar.zgr is still a WiP
New Hermes lexer / generated parser
Removing old test grammar file
Initial work of running through an entire grammar from the new grammar file format and creating a CompositeGrammar