Deletion hook support

[DanielWTQ]

Support data update trigger upon articles deletion

[DanielWTQ]

This replaces #10
The first commit is needed for CI to pass and is pending separately at #20

[DanielWTQ]

Rebased this, first commit was merged in 0fe5afe

[codecov]

Codecov Report

❌ Patch coverage is 55.55556% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.07%. Comparing base (0fe5afe) to head (cd0f50a).
⚠️ Report is 11 commits behind head on master.

Files with missing lines	Patch %	Lines
src/Hooks.php	55.55%	12 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #21      +/-   ##
============================================
- Coverage     72.22%   64.07%   -8.15%     
- Complexity       28       32       +4     
============================================
  Files             1        1              
  Lines            90      103      +13     
============================================
+ Hits             65       66       +1     
- Misses           25       37      +12     

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[vedmaka]

I tested this patch on SMW 6.x, and confirmed it works as expected

[gesinn-it-gea]

Dear all, sorry for the delayed response to this PR. We will integrate your proposals into the current code base.

[gesinn-it-gea]

Done in https://github.com/gesinn-it-pub/SemanticDependencyUpdater/releases/tag/4.2.0

[gesinn-it-gea]

A sh.. Just saw, that CI breaks for MW 1.39 because of the updated DeferredUpdates import for MediaWiki 1.43. I'll prepare a 5.x release ....

[gesinn-it-gea]

now we are good. Either v4.2.0 or v5.0.0