Added a new datatype to represent a pair of FESCLLocationCoordinateMinDec, similar to a CLLocationCoordinate2D.

Convenience function for constructing a FESCLLocationMinDec2D.

Class method for taking a CLLocationCoordinate2D and returning a FESCLLocationMinDec2D.

And the appropriate test.
Add documentation for new FESCLLocationMinDec2D to the read me.
Renaming of the things….

So the name FESCLLocationCoordinateMinDec with coordinate in it bugs me.  What this really is a "degree" or one axis of a coordinate.  So I'm renaming FESCLLocationCoordinateMinDec to FESCLLocationDegreeMinDec.

Made the name changes and the ran the tests and everything appears to be fine.