make mutations available in all places

[oliver-sanders]

"Cylc Objects" are things that have Cylc ID's such as workflows, cycles, tasks & jobs.

All Cylc objects can be made "mutable" by adding the cylc-object directive to the relevant component.

This adds the on-click menu which is automatically propagated with the appropriate mutations.

The tree view currently implements mutations for all "Cylc Objects", however, I don't think other views do.

We need to go through and add the directive where appropriate, taking care to avoid any conflict with other on-click interactivity & tooltips.

Pull requests welcome!

[hjoliver]

The tree view currently implements mutations for all "Cylc Objects", however, I don't think other views do.

table view (is this all you meant?):

[oliver-sanders]

table view (is this all you meant?):

Great, just GScan left then.