Pure VCF moved to it's own repo https://github.com/robgmsn/PureVCF

VCF 2.5 VCF Updated to V2.5 14/04/21 Library updated to 3D models. Changed the CV mixer from Average to Sum and added inverter stage to retain consistency. Some resistor values reduced to 10K, inline with low noise techniques. Rerouted and reduced some traces.

Rename pureModular/Pure VCF.sch to pureModular/pureVCF/Pure VCF.sch