Do relinking during rimport

[samsrabin]

This PR makes it so that rimport does the relinking step too. If relinking is all done successfully (or no new files were published), a message is printed saying that there's no need to run relink.py.

Resolves #14.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 99.40476% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 99.13%. Comparing base (ff55606) to head (2010909).
⚠️ Report is 49 commits behind head on main.

Files with missing lines	Patch %	Lines
tests/rimport/test_check_relink_worked.py	96.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #20      +/-   ##
==========================================
+ Coverage   97.76%   99.13%   +1.37%     
==========================================
  Files          21       28       +7     
  Lines        2010     2899     +889     
==========================================
+ Hits         1965     2874     +909     
+ Misses         45       25      -20     

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