Add Ableton's Link protocol to Mixxx

Registered by Sean M. Pappalardo

Ableton open-sourced their Link protocol (GPLv2+ so compatible with Mixxx,) and given the performance aspirations of many of our users, we would do well to add it to Mixxx for greater creative freedom.
https://www.ableton.com/en/link/
https://ableton.github.io/link/
https://github.com/Ableton/link

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Sean M. Pappalardo
Direction:
Needs approval
Assignee:
None
Definition:
New
Series goal:
None
Implementation:
Not started
Milestone target:
None

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