Create test suite for the JavaScript Ωedit RPC client

[scholarsmate]

We have C++ and Scala RPC servers and test suites for them. The next step out is to build a test suite for the JavaScript RPC client. This will be the most important test suite because it will exercise the full stack for Ωedit and we should strive to get as much code coverage here as possible. This is the test suite that will serve to inform integrators on how to interface with Ωedit and expected inputs and outputs. Being that the client is in JavaScipt, we can use a simple and fun framework like Mocha to develop a suite of ergonomic BDD test cases.