Remove deprecated functions in CECoordinates

[Jvinniec]

The following methods in CECoordinates are deprecated and should be removed in a future release (tentatively v1.4).

Functions replace by CEAngle class

• XCoordinate_Deg() (replaced with XCoord().Deg())
• XCoordinate_Rad() (replaced with XCoord().Rad())
• YCoordinate_Deg() (replaced with YCoord().Deg())
• YCoordinate_Rad() (replaced with YCoord().Rad())
• GetHMS() (replaced by <XY>Coord().HmsVect())
• GetDMS() (replaced by <XY>Coord().DmsVect())
• HMSToAngle() (replaced by CEAngle::Hms(vector<double>) and CEAngle::Hms(string))
• DMSToAngle() (replaced by CEAngle::Dms(vector<double>) and CEAngle::Dms(string))

Constructors

• CECoordinates(const CECoordinateType&) (constructing from a coordinate type alone is not very helpful)
• CECoordinates(const std::vector<double>&, const std::vector<double>&, const CECoordinateType&) (Instead use the primary constructor with CEAngle::Hms(const std::vector<double>&) and CEAngle::Dms(const std::vector<double>&))

Additionally... The methods identified in issue #20 as providing duplicate functionality should be removed as well in the next release. Specifically the long forms of the conversion methods that don't rely on CppEphem functions.

[Jvinniec]

CECoordinates has been replaced by the CESkyCoord class. CECoordinates will be removed at some point in the future. That point is currently unknown, but it is noted that users should no longer be using CECoordinates.