Disable custom 2D separable filtering kernels on windows #770
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We currently bundle some custom 2D convolution kernels not present in CuPy. We have additional testing of these internel kernels, but I found that on the Windows platform a subset of these tests currently fail.
This MR disables auto-selection of these kernels on the Windows platform (will always fall back to CuPy's
cupyx.scipy.ndimage
kernels in this case). The test cases that are currently known to fail are skipped for now on Windows. Longer term it would be good to resolve the issues with the kernels, restore the test cases and enable use of these kernels on Windows.