add feature to normalize A matrix and RHS vector

implementation, normalize A and rhs

add feature in nonlinear solver

Comment out of writing matrices for debugging

Normalize linear equation system only for rectangular shaped A Matrix

add the switch in NonlinearSolver

add feature in matMultTranspose

only when A is not square

deactivate PETSc implementation

add the check function in EquationSystem

add override functions in ODE

add override functions in TimeDiscretizedODESystem