* Bug fix 3.4/collection babies (#9033)
* Prepare API to create multiple collections in a single request to ClusterMethods to improve speedup
* Added counter on how many collections are successfully created
* Allow multi collection creation one level higher
* CollectionMethods now allow batch createion of Collections
* Improved array size assertions
* Now a graph is createad within a single roundtrip in the agency.
* Added new header files
* Insert collections in the AGENCY with TTL and a isBuilding flag, collections with this flag should not be visisible in the coordinator
* Added forgotten C++ file
* Fixed a rare race condition, and the failing IResearch Tests
* readded callback on DONE, otherwise lists are out of sync
* Fixed assertions to let mocked tests pass...
* Fixed community cluster
* Started fixing IResearch analyzer test, catch-tests are failing ;(
* Solved missed merge-conflict
* Added helper functions in AnalyzerFeature-test
* Refactoring AnalyzerTest Section-Auth
* Refactoring AnalyzerTest Section-Emplace-Duplicates
* Refactoring AnalyzerTest Section-Emplace-Error-Cases. Recovery-Test is now red, it seemed to be green because of invalid test case before.
* Refactoring AnalyzerTest, split GET test into multiple parts, still left 'cluster simulation'.
* Attempt to extract Coordinator / DBServer tests a little bit. This commit starts to break all Coordinator tests. However i am convinced that earlier version did NOT test a cluster situation at all, but some hybrid of SingleServer with full local storage that got told to be a Coordinator from now on, but without any Coordinator setup...
* Temporarly disabled some tests in AnalyzerFeature, as discussed with @gnusi.
* Fixed include guard.
* Temporarily deactivated failing tests
* You shall save your files before you commit...
* Fixed test asserting on plan version, which is now higher than before