Adding std::array constructors to TemplateXXX.

This reverts commit 5e9c0be7.

Using std::array is safe, so users should prefer this constructor to the older constructor with pointers.

Add mesh ID.

This can be used for counting of meshes or other object instantiations etc.

Replaces all of std::endl with "\n".

This makes a 3 years old compiler happy.

This is done for potential and obvious file streams.

This closes #87.

This fixes #97.

Mesh generators

Using ORIGIN and variadic constructors added before.

Make MathLib independent of GeoLib.

- Implemented class template GeoPoint (see GeoLib/Point.h) and substituted class templates in the typedef.
- Some changes due to changed namespace in MathLib/Vector3.h and GeoLib/Color.h.