v1.0.0 - Aux Driver Introduced

feat: builds an extra aux interface driver

Useful when you need to have 2 instances of
black hole audio driver instead of one, like they
mentioned in the following discussion:

* https://github.com/ExistentialAudio/BlackHole/discussions/64#discussioncomment-168447

Resources:

* https://github.com/ExistentialAudio/BlackHole/wiki/Running-Multiple-BlackHole-Drivers