Finished accumulated changes from previous commits:
- All changes pertain to linear algebra code
- Changed the internal structure of (CRS/CCS)ByteMatrix, having now an
array of row/column vectors, where each vector is a CompressedByteVector
- Swap rows in CRS, and swap columns in CCS should be much faster now
- Added in-place row additions with dumb implementation
- Removed some unused methods and classes
PInactivationDecoding optimization step 7