PI: Allow drag and drop to route

Hi. Small QoL improvement.

It kills my finger and my mouse to storage > routes > material > create route > double click to actually route.

please allow drag and drop from routes to specific factory.

When updating the Extractor, be able to drag it and the 10 doohickeys to a new location, and then be able to click the submit button.

Both are good ideas. I support.