Add Versions - Manage permission

[fashxp]

What about adding a new permission definition eg. "Versions - Manage" (a general one instead of workspace specific), where it allows the current deletion of versions and is more an administrative tool, but still limited only to the workspaces one is allowed to see by versions.

Originally posted by @kingjia90 in #384 (comment)

• Add new Versions - Manage permission
• Implement for documents, assets, data objects
• Add client and server-side checks