Replace/Remove Vector, Matrix and Quaternion classes

[kPYKx7Ddw4n1aIKZ]

There are some custom types implemented for Vector, Matrix and Quaternion.
I don't think that this is necessary because Ogre has some own types for this.
I also believe that they have more features and have been tested much more.
Some custom types aren't used at all and I think that all others can be replaced by Ogre types.

[paroj]

generally this is true, but the ogre types suffer from OGRECave/ogre#730

however I recently refactored the Vector class which can now fully replace TVector in scape.

OTOH IMatrix4 does not make any sense..