Missing test for Inception Time: limit ```IT_max_max_kernel_size``` parameter to number of timesteps

[bsolino]

Inception time limits its maximum kernel size to the number of time steps. This was previously done in

mcfly/mcfly/modelgen.py

Line 167 in 8f0eb7b

if settings['IT_max_max_kernel_size'] > x_shape[1]:

However, there is no test in the test suite checking this behavior.