Ability to run workflow from within Editor

[tlawrie]

Is your request related to a problem? Please describe.
Make it easier to run from the workflow editor.

Right now its: change something -> Click create new version -> Click create on the modal -> Navigate back to Workflows -> Run workflow. They want to be able to iterate through changes as quickly as possible.

Describe the solution you'd like
Add a 'Run It' button to the workflow editor that opens a modal the same as the workflows screen.

Describe the benefits or justification for this request
This will allow quick iteration of changes and testing

Additional context
Will need to determine how this is implemented with versions. I.e. if there is unsaved changes, how is it saved before running?

FYI: @Simon-Harris-IBM