Adds a tool for creating feature source annotations.

[boehmseb]

The tool guides you through a project's version history to prompt for a new feature source location whenever the old one has changed.

[codecov]

Codecov Report

Attention: Patch coverage is 31.06061% with 91 lines in your changes are missing coverage. Please review.

Project coverage is 66.32%. Comparing base (982bf9b) to head (48a0418).
Report is 4 commits behind head on vara-dev.

❗ Current head 48a0418 differs from pull request most recent head 6c1479b

Please upload reports for the commit 6c1479b to get more accurate results.

Files	Patch %	Lines
varats/varats/tools/driver_feature.py	27.77%	91 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           vara-dev     #879      +/-   ##
============================================
- Coverage     66.49%   66.32%   -0.17%     
============================================
  Files           344      345       +1     
  Lines         27935    28067     +132     
============================================
+ Hits          18575    18616      +41     
- Misses         9360     9451      +91     

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