Model class refractor and multiple object import
ModelImporter class removed and replaced with new Model class.
Changed initBuffers in rendering class to support multiple object imports.
Deleted misslocated file
Added model array to handle all objects
initBuffer now takes in a array with all the objects and the amount of objects
in main while loop it is possible to take whatever object and change its modelmatrix
added modelmatrix and offset in model class with get and set functions
merged fixes on master
merged master with ramin branch