The classes in this directory are taken from OpenTK, and have the following changes:
* Quaternion: moved the field "w" from the end to the
beginning, to stay compatible with the C++ implementation.
Longer term, since we want to share Quaternion with the
implementation shipping in our libraries, we will have to change the C++ code to match this.
* Quaternion: Added a method to create a quaternion from euler x/y/z, without the w.
* NAmespace: moved From "OpenTK" to "Urho"