[LAU] new switchless wah plugin

[Hermann Meyer]

Hi

On request, I made a switchless wah plugin out of the GxWah.lv2
This means, the wah effect gets activated by moving the wah pedal and 
slips in bypass, when the pedal isn't moved.
Attack and Release times could be chosen between 0.1ms and 1.4sec.
This may be useful when you drive the plug with a expression (or midi) 
pedal, or, for automation strips in Qtractor or Ardour.

https://github.com/brummer10/GxSwitchlessWah.lv2

happy ducking