condenser_api tests get_discussions_by_comments moved to folder

added 71 commits

• bbfc76aa...70adbb7d - 69 commits from branch master
• ebb64a6a - Merge branch 'condenser_get_discussions_by_comments' of...
• 7425a049 - [ABW]: removed duplicate tests that were moved to separate folder

Compare with previous version

merged

mentioned in commit d5ba0398