Allow user to configure workspace start/stop sequence

[slemeur]

Goals

When a workspace is stopped, it can be snapshotted or not.
When a workspace is started, it can recover from a snapshot or not.

According to those capabilities, we need the following use cases:
1 - User should be able to configure the start/stop default behavior per workspace
2 - User should be able to by-pass the default behavior

Details

Configuring default start/stop behavior per workspace
In the workspace details > Settings : we will add a new category to let the user being able to choose the desire behavior for start and stop sequence.

Allowing the user to by-pass the default behavior
In the left-sidebar: when doing a right click on the workspace, we could add an option to start the workspace with the all different options:

• Start using latest snapshot
• Start from image

In the list of workspace: we could add the same options on the "cog" button

In the workspace details: we could add an arrow on the right of the "Open". When clicked it would show the different options:

Associated issues:

#4328