fix macOS build (following Projucer changes made in Windows, which removed /Applications/JUCE/modules from its headers). move JUCE headers under source control, so that Windows and macOS can both build against same version of JUCE. remove AUv3 target (I think it's an iOS thing, so it will never work with this macOS fluidsynth dylib).

modules/juce_gui_basics/filebrowser/juce_FileListComponent.h

@@ -0,0 +1,95 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2017 - ROLI Ltd.
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 5 End-User License
+   Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
+   27th April 2017).
+
+   End User License Agreement: www.juce.com/juce-5-licence
+   Privacy Policy: www.juce.com/juce-5-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   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
+{
+
+//==============================================================================
+/**
+    A component that displays the files in a directory as a listbox.
+
+    This implements the DirectoryContentsDisplayComponent base class so that
+    it can be used in a FileBrowserComponent.
+
+    To attach a listener to it, use its DirectoryContentsDisplayComponent base
+    class and the FileBrowserListener class.
+
+    @see DirectoryContentsList, FileTreeComponent
+
+    @tags{GUI}
+*/
+class JUCE_API  FileListComponent  : public ListBox,
+                                     public DirectoryContentsDisplayComponent,
+                                     private ListBoxModel,
+                                     private ChangeListener
+{
+public:
+    //==============================================================================
+    /** Creates a listbox to show the contents of a specified directory. */
+    FileListComponent (DirectoryContentsList& listToShow);
+
+    /** Destructor. */
+    ~FileListComponent();
+
+    //==============================================================================
+    /** Returns the number of files the user has got selected.
+        @see getSelectedFile
+    */
+    int getNumSelectedFiles() const override;
+
+    /** Returns one of the files that the user has currently selected.
+        The index should be in the range 0 to (getNumSelectedFiles() - 1).
+        @see getNumSelectedFiles
+    */
+    File getSelectedFile (int index = 0) const override;
+
+    /** Deselects any files that are currently selected. */
+    void deselectAllFiles() override;
+
+    /** Scrolls to the top of the list. */
+    void scrollToTop() override;
+
+    /** If the specified file is in the list, it will become the only selected item
+        (and if the file isn't in the list, all other items will be deselected). */
+    void setSelectedFile (const File&) override;
+
+private:
+    //==============================================================================
+    File lastDirectory, fileWaitingToBeSelected;
+    class ItemComponent;
+
+    void changeListenerCallback (ChangeBroadcaster*) override;
+    int getNumRows() override;
+    void paintListBoxItem (int, Graphics&, int, int, bool) override;
+    Component* refreshComponentForRow (int rowNumber, bool isRowSelected, Component*) override;
+    void selectedRowsChanged (int row) override;
+    void deleteKeyPressed (int currentSelectedRow) override;
+    void returnKeyPressed (int currentSelectedRow) override;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FileListComponent)
+};
+
+} // namespace juce