test_mic_array.py fails

[GitJRS]

lib_mic_array/tests/signal/BasicMicArray

breaks at

lib_mic_array/script/mic_array/filters.py

Line 31 in c045fc2

assert (coefs.dtype == np.int16), "Stage1Filter coefs must have dtype np.int16"

when it tries to use the Stage1Filter.

The reason is the Stage1Filter has been changed.