I have submitted a PR for basic-tool building

[OWigginsHay]

As the title suggest I have made a PR with my attempt at tool building. It is successful in that the assistant requests the creation of new tools, and an external system grants the tool access with an interface defined for the assistant to call. Currently all following calls to new functions simply get the return value {"success"}. This is because I have no automation of building a real python function implemented yet.

PR Link: #49

I am inviting feedback, next steps discussion or integration with work which is already generating python from function descriptions.