[Task] Switch workspace (for easy pull request review)

[chris-volk]

As a reviewer of a pull request of an Aspect Model (e.g. Catena-X) I want to keep my previous work in the editor, switch the workspace folder to a folder that represents the pull request context (model and all referred models (transitively)) so that I can understand and review the pull request easily and afterwards revert back to my original work context.
The process and best practice for retrieving the pull request context shall also be documented as part of this issue.

Describe alternatives you've considered
The current workaround is to manually backup your local workspace folder.

Additional context
This issue requires the consideration of file access on each supported platform and potentially required administrative rights

[chris-volk]

Consider to add multiple sources (github, multiple folders, ...) and have the github context priority.

[chris-volk]

Requirement 1: I want to continue my other Aspect Modeling Work later
Requirement 2 (for users without git experience): I want to open the mentioned Aspects from the review in the Aspect Model Editor together with the references (context) from the pull request -> instructions how to install git client or github desktop or download zip from pull request
Requirement 3a (for users experienced in git): If I have a git client installed I want the aspect model editor to listen to file changes and propose reloading so that I am able to switch branches to a pull request back and forth and review in the editor and afterwards review (already possible with Workspace refresh icon on the left frame, but can this be automatic?)
Requirement 3b: I want to define my workspace root folder (new folder or one of the previously configured ones) so that I am able to use a folder which is used for git

[chris-volk]

Also fix bug that second level folders are currently interpreted by the workspace:

Expected: second level folders are ignored.
Actual: concatenated path as namespace.