Wrapping boundaries when mask provided #181
Description
When a mask is provided for boundaries that have an east-west wrap or north-fold warp the wrap boundary is being padded open.
To fix this we could extend the mask value to the edge of the pad area. We need to identify a trigger to do this from the latitude or longitude.
There are two test in test_nemo_bdy_chunk.py that have been turned off until this is fixed.