Create Teaching Set via REST API

Description:
Our school uses SchoolsBuddy to manage Extra-Curricular Activities (ECAs). We need to automate the process of importing these ECAs and their enrolled students into iSAMS Teaching Manager.

This requires a new API endpoint to create a teaching set for each ECA. Once a set is created, we will use the existing API endpoint to associate students with it.

Requirements:

1. New Endpoint: Create a teaching set in iSAMS, named after the ECA.

2. Leverage Existing Endpoint: Use the existing Associate Student with Set endpoint to populate the sets.