VO18-CR Code review for Qt Safe Renderer 1.2 component

Code review of Qt Safe Renderer 1.2 component (runtime).

Definition of Done (DoD) for Code Review:

• Source code adheres to QPM - Software Development process and applicable guidelines complied with:
  • Qt Contribution Guidelines
  • Qt Quality Gate Criteria
  • Qt Coding Conventions
  • Qt Coding Style
  • Qt QML Coding Conventions
  • Qt Creator Coding Rules
  • Qt Commit Policy
  • Qt Review Policy
  • Qt Early Warning System
  • Qt API Design Principles
  • Qt unit tests guideline
  • Qt unit tests structure
• QSR Non-functional requirements are fulfilled:
  • Requirement: 3.2 .a Maintainability: Code must be modular and properly commented.
    • Verification approach: Design phase verification: Check requirement fulfillment in the reviews and static source code analysis.
  • Requirement: 3.2.b Maintainability: Cyclomatic complexity must be below 10 for the run-time component.
    • Verification approach: Design phase verification: Check requirement fulfillment with static source code analysis.