Feature request: Add support for new tool: Local shell manager

[sohamganatra]

Describe the solution you'd like
Add a new local tool - command manager

We should add following actions -

spawn a shell -> returns the shell ID
Execute any command (Shell ID, Command as input, timeout as input -> outputs are collected and sent back)
Get history so far (For last x commands)
exit the command manager.

The command manager will maintain the state for the same shell id.