[wish] Mixer and Pedalboard view/workflow modes

[ssj71]

Hey falk,
great work going on here as always!
Sorry to invent more tasks but I thought of a couple workflow features that might be desirable (if not reject the request and close it! :D ). Basically its just rearranging how things are displayed and possibly routed.

One is mixer strip mode. This really duplicates non-mixer's functionality but you support LV2. You could also do the "mini guis" in some things a little bit like mixbus. I think that would be perfect for live mixing. The routing would automatically connect plugins in the same strip, but then you could connect the strip ins/outs however you like in the patchbay.

Mode 2 would be "stompbox mode" where the mini-guis would be more like rectangles and maybe you could rearrange the "pedalboard" and connect them in different ways. Kind of a simplified patch bay that exposes the most important parameters for "dialogless" editing. This mode really might only appeal to guitarists who don't use rackmount gear and doesn't add any functionality. But that's why its tagged as a wish :)