Gumbel distrib: added unit test to test if keyword arguments have the same names in Numba and Numpy, and same samples if started from the same seed. It fails at present.
Gumbel distrib: added unit test to test if keyword arguments have the same names in Numba and Numpy, and same samples if started from the same seed. It fails at present.

cpcloud/numba,numba/numba,numba/numba,cpcloud/numba,numba/numba,cpcloud/numba,numba/numba,cpcloud/numba,numba/numba,cpcloud/numba