CI/CD pipeline for the TestApp repository

[sebastianpfischer]

In order to automatically validate our TestApps we want to create a CI/CD pipeline per TestApp

Capabilities

• detection of which TestApp was modified and trigger only the CI/CD pipeline associated to it
• the automatic test should try to be as closed as a real system, e.g. QEMU could be used for a SIL. Linter and compile errors should also be verified

Acceptance Criteria AC1: pipeline setup AC2: dummy run validates its functionality