galois v0.0.7

79f31db Version bump to 0.0.7
00ef00a Add some basic usage examples to documentation
96403bf Support GF arrays of any signed or unsigned integer type
2733c1d Add the ability to retarget numba ufuncs on-the-fly
aa730a0 Fix broken sphinx table of contents
6f24cae Add unit tests for numpy ufunc methods
f9bc809 Convert GF polynomial evaluation to a numba gufunc for an 8000x speed-up
008edff Add sparse lookup tables for a large GF(p) field for unit testing
0560ca3 Rename some pytest fixtures
884fafe Add function to find the first primitive root of unity
15441ff Add performance metrics to README
daa7df1 Refactor _GF base class and ufunc invocation