cli: create internal developer focused documentation on how to implement new commands in bison

[majorsylvie]

this would involve a write-up, once bison is integrated in some way with chiventure, on how to add new functions into chiventure

this would allow other teams to easily add their own commands without having to know as much about bison.

would involve talking about the .l and .y file, along with the way c files have been chosen to be integrated with bison (likely by adding a new operation to operations.c and updating some kind of handler function within the bison c file.