Replaced Matrix with AMatrix in all the functions and used toMatrix method to convert AMatrix to Matrix everywhere needed
Removed inputModified function from IChol and CholCommon
removed decompose method from IChol, changed decompose method to return this instead of true, removed getT(T) method, modified gett() method to return new copy of T instead of its own field, changed tests
getT returns T and not Matrix.create(T)
replaced getT with getL and getU