UMP: Remove juce_audio_devices dependency

modules/juce_audio_basics/midi/ump/juce_UMPReceiver.h

@@ -0,0 +1,40 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2020 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   The code included in this file is provided under the terms of the ISC license
+   http://www.isc.org/downloads/software-support-policy/isc-license. Permission
+   To use, copy, modify, and/or distribute this software for any purpose with or
+   without fee is hereby granted provided that the above copyright notice and
+   this permission notice appear in all copies.
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+namespace universal_midi_packets
+{
+
+/**
+    A base class for classes which receive Universal MIDI Packets from an input.
+*/
+struct Receiver
+{
+    virtual ~Receiver() noexcept = default;
+
+    /** This will be called each time a new packet is ready for processing. */
+    virtual void packetReceived (const View& packet, double time) = 0;
+};
+
+}
+}