adds dokka support to generate javadocs for the kotlin only projects

[raleigh-g-thompson]

Maven Central requires javadoc files for every project, even if the javadoc file is empty there still has to be one pro-project.

The build process for some of the cql-language-server projects still generated javadoc files.

Unforunately, the cql-ls-service and cql-ls-debug-service do not. Those projects use main.kt as entry points and teh shading plugin interferes with the javadoc plugin. This doesn't affect the jar executable, just doesn't create the needed javadoc files. This cauased maven central to reject those projects because of the missing javadoc files.

The PR adds the dokka plugin which generates javadocs for kotlin only projects.

[github-actions]

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[github-actions]

Coverage Report

Overall Project	82.62%	🍏

There is no coverage information present for the Files changed

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.25%. Comparing base (392a4b7) to head (4e93939).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #118   +/-   ##
=========================================
  Coverage     75.25%   75.25%           
  Complexity      365      365           
=========================================
  Files            44       44           
  Lines          1160     1160           
  Branches        171      171           
=========================================
  Hits            873      873           
  Misses          189      189           
  Partials         98       98           

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