projections still broken

[doutriaux1]

@aashish24 looking at baselines:
https://github.com/UV-CDAT/uvcdat-testdata/blob/master/baselines/vcs/test_vcs_basic_boxfill_aeqd_proj.png

You can see that the purple blob over africa gets cut at the 0 longitude.

[aashish24]

@danlipsa it would be great if you can look into this next... thanks,

[aashish24]

Actually never mind. @doutriaux1 this bug with these kind of projection will require some additional bug. Like I mentioned proj4 is doing the right thing. Either we have to know the projection and chop-off data before sending it for rendering or apply some stencil techniques before we tackle this one. I don't know if we have enough time to fix this for 2.4 but can look into it immediately. I think we should plan y for 2.4.1 release as well.

[danlipsa]

Note that vcs_test_basic_boxfill_-3_proj_NH seems to be also aeqd and that works fine. I'll have to look at the differences.

[danlipsa]

After proj4.9.2 upgrade aeqd plots look better. We'll replace this PR with
#1876