T27553 Crash_in_DICOMReaderServiceActivator:

Summary:
Prevented race condition that can lead to a crash when creating ManualSelectingDICOMReaderService.

Used a module listner to create reader as soon as MitkDICOMReader module is loaded.

Introduce Helper to ensure adding of tags of interest view service listening

Refactored code to use the DICOMTagsOfInterestAddHelper to avoid us::ModuleContext warnings.

Fixed T27553.

Test Plan: code review and unit tests

Reviewers: O1 MITK Reviewer Group I, kalali

Reviewed By: O1 MITK Reviewer Group I, kalali

Subscribers: kislinsk, nolden, kalali

Maniphest Tasks: T27553

Differential Revision: https://phabricator.mitk.org/D347