Create project workspaces to bundle apps used on projects

Description of the limitation and why it is relevant to address

As a user/project manager I want to find my applications assigned to/used on projects in one place, for example within a workspace, so that I can have a better overview of the calculations on those projects, and be able to find those projects much easier.

I think this is relevant for the VIKTOR platform because it will improve the platform in terms of user experience and tool exploration

Submitter proposed design (optional)

Create an object (similar to a workspace) in which you can assign your application instances (which are now workspaces).

Current workarounds

Create a label per project, and assign the workspaces with the correct labels. This is limiting as the admin should create the labels, and these labels clutter the label list over time.

Requested by

Aaron G.