Pymap3d

* moved [Matlab/Octave code](https://github.com/scivision/matmap3d)
* moved [Fortran code](https://github.com/scivision/maptran)

check for negative slant range or altitude

add parameter verification to Matlab/Octave functions (e.g. number of arguments, type of arguments)

Add `lookAtSpheroid` to Python, Matlab/Octave, Fortran code. This determines the intersection point of a look angle from an object above the spheroid

improve test modularity and robustness with minimum prereqs (Numpy)

* CI Template update
* console scripts easier to use

modernize setup (setup.cfg)

* Cleaned up Fortran code error handling
* fixed Python code coverage testing
* Readme.rst => Readme.md