Indentation changes only before real work. Refs #7482
Remove restriction on minimum of 2 workspaces for GroupWorkspaces.

Refs #7482
Refactor GroupWorkspaces to improve structure.

Refs #7482
Removed file usage from GroupWorkspacesTest.

It just uses the helpers now.
Refs #7482
Formatting changes only to UnGroupWorkspacesTest before real work.

Refs #7482
Removed file usage from UnGroupWorkspacesTest. Refs #7482
Merge branch 'feature/7482_allow_groupworkspaces_a_single_item' into develop