More work standardizing the nomenclature of the
orientation systems across all language documents.
Added C functions to calculate rotation matrices
for EQJ/ECT and ECT/EQJ.
Define ECT = True Ecliptic of Date in the documentation.
I will soon convert the Ecliptic() functions to return ECT instead of
ECL, but I will retain ECL support via rotation matrix functions.
Provide shield.io badges for pypi, npm, and nuget packages.
On the main README page, moved the badges into the supported
languages grid.
Added link and badge on each language documentation page.
I'm trying to make it easier for first-time visitors to
this project to find the source code and documentation
to get started quickly. Moved directories that are only
used by contributors (mostly myself) out of the root
and into the 'generate' directory where they are less
distracting.
