Finished with basic matrix design and generic matr...

# mathematics

[altavir]

Finished with basic matrix design and generic matrix inversion port. Performance is terrible due to boxing, I will need to think some more about it, but it is quite easy to add specialized optimized implementations. Also tested it with Graal. It indeed solves the problem of boxing almost completely (event naive implementation is only about 4-5 times slower than native optimized BLAS).