Reflection_Engine: Create method to create a new object from the UI

Since most of the `BHoMObject`s are just a collection of key value pairs, I think it would ease to job for newcomers to create schemas from the UI.

Given a project name, a namespace, a class name and a series of properties, we should be able to create the cs file straight from these info, and save it in the right place.

Start by locating the Reflection_Engine UI entry point and reviewing how BHoMObject schemas and generated files are currently handled. Define the inputs for project name, namespace, class name, and properties, then verify that a generated C# file is saved in the appropriate location.

Written by the indexing model from the issue text.