Initial commit of Calf
Summary: Initial commit of Calf which resolves T3166.
Test Plan: I am currently unable to test this package due to an issue with the audio deamon JACK (T1883). Thanks for reviewing this package and I am sorry there isn't a test plan but I thought I should upload this anyway so that someone does not have to repackage Calf once the issue is fixed.
Reviewers: Triage Team, DataDrake
Reviewed By: Triage Team, DataDrake
Subscribers: DataDrake, JoshStrobl
Maniphest Tasks: T3166
Differential Revision: https://dev.solus-project.com/D1338