`getWaysToJoinToOtherLogTables` (#14062)
* Make it possible to define joins for log tables using getWaysToJoinToOtherLogTables
* Adds some tests for custom log table joins
* add missing log tables joined using getWaysToJoinToOtherLogTables
* automatically add log tables up the hierarchy
* code improvements
* Adds new ExampleLogTables plugin giving a showcase for custom log tables
* specifiy table name in userid archiver to fix query if custom log table joins on user_id column
* fix tests
* Adds log table that does only indirectly join with log_visit
* Allow defining joins on visit and action
* update ui files
