Add curves and interpolation to MIDI cc automation

Please add curves and interpolation to MIDI cc parameters.

Drawing curves and lines with the line tool having hundreds of points is terrible. It would
be a big workflow improvement working with curves and interpolation between points, just like the automation
works in the Project view.

https://www.steinberg.net/forums/viewtopic.php?f=285&t=147370

Already a request thread.