[FIX] Rank: Fix loading workflow created with another language

[janezd]

Issue

Fixes #7307

Description of changes

Add an integer id to ScoreMeta and store selected methods as ids, not string literals.

This does not affect connected scorers because they are not stored in settings. The use ScoreMeta, but id's are not used (we just use 100 + index, where index is an index of an input connection)

Includes

• Code changes
• Tests

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.97%. Comparing base (4d54417) to head (7a040e7).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7332      +/-   ##
==========================================
- Coverage   88.99%   88.97%   -0.02%     
==========================================
  Files         337      337              
  Lines       74598    74600       +2     
==========================================
- Hits        66387    66375      -12     
- Misses       8211     8225      +14     

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