Reformatted getNonZeroRowLength to pass on the device Type in string and thus enable the lambda in SparseRow_impl.h

Tried using std::vector to avoid having to implement DeviceType into SparseRow. Commiting for backup purposes.

Moved test implementations to _impl.h. Reformatted code. Changed long commented out sections to fake ifdef.

Fixed mistake where integer division was used for certain format declarations. Added commented-out helpful prints to identify errors.

Added ChunkedEllpack to testing. setCompressedRowLengths test is broken, commiting for backup purposes.

Fixed POSSIBLE MISTAKE in both addElement functions, where columns where being compared to this->rows, changed the formed to be compared to this->columns.

Fixed mistake with setSlice, ceil function used RealType and division, this would cause integer division at certain format declarations, now uses float only.

Fixed and reformatted setCompressedRowLengths test function. Found error for setRow test function, it is possibly in the implementation of SlicedEllpack.

Added Ellpack and SlicedEllpack to tests. Changed setCompressedRowLengths test to make it work with all Ellpacks. setRow test is broken for SlicedEllpack. Commiting for backup purposes.

Added Type instead of all int indexes. Formatted includes to top of file. Removed the need for using namespaces.

Added Type instead of all int indexes. Formatted includes to top of file. Removed the need for using namespaces.

Added template testing for all working tests. Implemented RealTypes and occasionally IndexType instead of int/float/etc. Updated TODO.

	Added getType test error location, commented out its tests.
	Added visual representation of used matrices in tests.
	Added working and correct version of addElement test.
	Fixed vectorProduct test for Host, CUDA throws illegal memory
access.
	Fixed performSORIteration for Host, CUDA throws segmentation
fault.
	Fixed load/save test to not use a path.
	Added test for print function.
	Reformatted code.
	Added messages thrown for CUDA errors into tests, so that the
whole test doesn't crash after those errors.
	Updated TODO.

Added another approach using Vector.h for test of vectorProduct function. Added a concept test of performSORIteration function. Added test for save and load functions. Updated TODO.

Adding commented-out, provisional and non-functioning test for vectorProduct function. Adding only for backup purposes.