Fixes in copyrights rule

[kgevorkyan]

What's done:

• HEADER_MISSING_OR_WRONG_COPYRIGHT - if pattern have obsolete year, also update it like in WRONG_COPYRIGHT_YEAR
• If copyright have old first year, but actual last year - allow such cases
• Add more tests
• Enable multi release for log4j2

[codecov]

Codecov Report

Merging #1155 (1060af9) into master (e8007b5) will increase coverage by 0.02%.
The diff coverage is 79.16%.

@@             Coverage Diff              @@
##             master    #1155      +/-   ##
============================================
+ Coverage     84.72%   84.74%   +0.02%     
- Complexity     2482     2498      +16     
============================================
  Files           102      102              
  Lines          6974     6990      +16     
  Branches       1872     1881       +9     
============================================
+ Hits           5909     5924      +15     
  Misses          302      302              
- Partials        763      764       +1     

Flag	Coverage Δ
unittests	84.74% <79.16%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...leset/rules/chapter2/comments/HeaderCommentRule.kt	88.80% <79.16%> (+0.72%)	⬆️

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