Map Symboltable to interpret with grammar tags

[THinnerichs]

Interpret functions with grammar tags are annoying to write and debug, but way faster than using Symboltables.
Symboltables however, are way easier to write and debug.
Second, Symboltbables are just Dict{Symbol,Any}, which is flagged as type piracy by our CI.

Hence, we should write a function that automatically parses a symboltable to an interpret function over grammar tags.