Webpage includes quickstart, user guide, tutorial, example collection and api.
One new example was added for the user guide.

Build api pages with autosummary and modified templates to include class documentation.
Tutorial updated to BVR 1.0.0 (engine use).

Copied the first version of the sphinx documentation into the docs/source folder. It can be built in html format with '.\make html'.
This includes start of API documentation, summaries of the examples and a tutorial for the 'analytical function' example for BVR version 0.0.5.