Cloud milestones Service Portfolio 2022

Laura and Franz suggested:

• MS 1: First regular review starts at the end of January 2022
• MS 2: Complete Plony Project "1.2 Service Canvas" until April 2022
• MS 3: Onboarding Process is completely integrated into Plony" (=Service Canvas+Service Integration list+Cloud Portal interface) until August 2022

(Additional: Get started with another Plony Project, apart from SP processes until December 2022)

This issues is done by #268 (closed)