creaCore library

The creaCore is a core library containing very general purpose classes that are needed by other libraries. Right now, the creaCore library contains:

• the Creobject base class for all objects created in the creaLibs
• the Stream base class for reading/writting creobject file format
• 3D generic matrices (Matrix3x3 class) and vectors ( Vector3 class)
• 4D homogeneous matrices (HMat class) and vectors ( HVec class)