Consider a more C++ approach for handling memory allocations in MemoryUtils class

[pelesh]

@rothpc says: I tend to prefer a more C++ approach for handling memory allocations, so the MemoryUtils functions would use something like:

template<typename T> T* allocate(I n);

where it is assumed that type I is a parameter on MemoryUtils as suggested above. Error handling suggests exceptions with this approach.

Need to add basic exception handling to ReSolve in order to implement this.