Create Command to create a new binding

func new binding

create a new command to add a new binding to a function, this will create the scaffolding for the customer for their new binding

No file, test, or entry point is named. Start by reviewing the existing command structure and binding scaffolding in azure-functions-core-tools, then determine the expected command inputs and generated output. Done means a command can add a new binding to a function and generate the customer's binding scaffolding.

Written by the indexing model from the issue text.