gh-1000: Do not materialize text coordinates in Find All menu items.

[MKadaner]

Summary

Find All menu displays the line and position ("coordinates") of the found pattern in the fixed columns at the left side of the menu. The coordinates were formatted into the menu item text string, and to display them the corresponding part of the item text was printed in the fixed column.

After this change, Find All menu items' text is just the content of the corresponding editor line. To obtain the strings to display in the fixed columns, menu invokes the fixed_column_provider function which should be registered by the menu owner.

Macros should use Menu.GetItemExtendedData instead of extracting line and position of the found pattern from the item's text.

References

• Each item of Find All menu contains coordinates of the found text... #1000

Checklist

• I have followed the contributing guidelines.
• I have discussed this with project maintainers: Each item of Find All menu contains coordinates of the found text... #1000
  
  If not checked, I accept that this work might be rejected in favor of a different great big ineffable plan.
  

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[MKadaner]

@alabuzhev, when you have time, could you please review? It's not small but reasonably straightforward.

[alabuzhev]

Thanks

[MKadaner]

Thank you!