See https://community.blokas.io/t/adsr-experiment-preset/4386/5
Experiment at creating an ADSR envelopes using one-shot LFOs.

Like version1, version2 allows notes to be interrupted by new notes.

Rewritten for Virtual Mappings, version2 also allows live switching of curve types and Velocity sensitivity.

Feedback appreciated.