JACK Control API: Extended license from Nedko Anaudov

SPDX-FileCopyrightText: Copyright © 2008-2023 Nedko Arnaudov
SPDX-License-Identifier: ( GPL-2.0-or-later OR LGPL-2.1-or-later OR MIT OR AFL-2.1 )

Implementators and/or users of the JACK Control API interface header
file are herby granted right to use my work in control API header file
under one of the licenses (pick any, pick one):

 * GPL-2.0-or-later
 * LGPL-2.1-or-later
 * MIT
 * AFL-2.1

1.9.20

1.9.19

1.9.18

1.9.17

1.9.16

1.9.15

Merge branch 'develop'

Signed-off-by: falkTX <falktx@falktx.com>