hash.h, hash.tpp, cauchy.h
- Buckets must be a power of 2, so that we can use & instead of the module (so its faster).
- Added Hash_Tab for 8bits and 128bits
- Moved the construction of the cauchy matrix to cauchy.h

mersenne.h
- Defined some new primes spaces

network_sketches.py
- Added a test function

py_agmssketch.h
- Added cw2 as a possible random generator
- Added AGMS8

test_AGMS.py
- Some tests to test the bounds of the AGMS sketch