121 workspaces should exist and persist aswell

[themassiveone]

• [x] workspaces added to room
• [x] workspaces integrated into persistency
• [x] workspaces integrated into User Interface
• [x] workspaces have bookings rather than rooms

[themassiveone]

lets move this to a new issue: workspace item and bookedTimeFrame interactions tested

[themassiveone]

bug: adding an item to a workspace results in all workspaces of the same room receiving this item

[themassiveone]

basically done now