Respect custom x509 ext in selfsign

[sthussey]

• No longer ignore specified x509 extensions in the CSR when generating a self-signed certificate.

[sthussey]

This resolves issue #1280

[nickysemenza]

this looks good; is there a simple test you could add for this?

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b4d0d87) 52.94% compared to head (f7af124) 52.94%.
Report is 102 commits behind head on master.

❗ Current head f7af124 differs from pull request most recent head 5ac7cd9. Consider uploading reports for the commit 5ac7cd9 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1281   +/-   ##
=======================================
  Coverage   52.94%   52.94%           
=======================================
  Files          76       76           
  Lines        9095     9096    +1     
=======================================
+ Hits         4815     4816    +1     
  Misses       3813     3813           
  Partials      467      467           

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[sthussey]

@nickysemenza Sorry for the long delay, lost track of this. I've added a test.