Read all parse information created by tcl
Feeble attempt at allowing parsing arbitrary tcl strings
Start directly using tokens
Add some insecurity tests
Fix rust-bindgen
Make sure a command token looks like what we expect
Some refactoring
Prepare for allowing known safe values
First attempt at using tokens to detect safety
Refactor names of token types
Seperately detect safety of variables and commands
Borrow token vector
Flesh out concept of 'safe' commands