Fix some clang triggered issues
Summary: Clang 10 does complain about a few things, these should be fixed
Test Plan: CI should show no impact on Tier 1 platforms
Reviewers: O1 MITK Reviewer Group I, O3 MITK Reviewer Group II, floca
Reviewed By: O1 MITK Reviewer Group I, O3 MITK Reviewer Group II, floca
Subscribers: floca
Tags: Breaking Change
Differential Revision: https://phabricator.mitk.org/D360