[FEAT] Add the ability to drag outputs to input in the visual designer

[MarcBruins]

Feature Request

Problem Overview

• Making it easier to build visual workflows *
  It would be a great efficiency boost if we can have an option to drag outputs to inputs. A connection line between this output and input will ensure the value from the output is used as an input.

This is a video of how that would work from: https://www.workflowbuilder.io/

workflow_editor_01_gen_by_hand.1.mp4

Proposed Solution

It would be great to get some ideas rolling on how to achieve this as inspiration to pick this up. VIsually it is easy to understand what needs to happen. From a source code perspective not so much for me right now.