doc updates

• updates to readthedocs configs
• fix problem with pypi readme (md -> rst)

rearranging + reorganizing

• added decorator class for time-like properties (adds start/end and time-delta deriving methods).
• changed contract for Plot class: origin is now called start in line with the decorator, hence the minor version bump.
• far fewer files included in package thanks to MANIFEST.in
• pre-commit added
• linting files beyond just python
• documentation + webpage

second cleanup

readme cleanup, small improvement in coverage by refactoring how fakeData.py ran.