[Refactor] Add new ExecutionContext class

[ctsstc]

I would like to have a defined structure to pass a context through to the execute commands. Not all commands necessarily use any or all of these so it should not be required on the ICommand.execute() interface to require these.

It should have:

• args
• message
• commands
• client

Forgot to submit this :0
Also had this garbage left 🤔 can't remember what it was :0
Maybe I was going to go off about a class or interface ¯_(ツ)_/¯

This could either be

Blocks

• [TechDebt] Big Updates #118