VO5-WT Walkthrough of SW architecture specification

All review comments should be available via this task.

The definition of done (DoD) for the walkthrough review:

Document adheres to documentation guidelines in the QSR Safety plan:
        1a) location
        1b) naming
        1c) progress tracking
        1d) change control
        1e) review policy
        1f) requirements for documents

Document has been verified according to QSR verification specification.