Major JUCE features and updates

This file lists the more notable headline features. For more detailed info
about changes and bugfixes please see the git log and BREAKING_CHANGES.md.

Version 8.0.13

• Improved the compile time of the juce_gui_basics module
• Added support for Apple Icon Composer
• Improved the performance of Component painting
• Added a new ComponentDiagnosticsDemo
• Reduced the stack size of Component and ListenerList
• Improved macOS image tiling
• Bumped the minimum Windows target version to 1607
• Improved rendering performance on Windows
• Improved Windows resizing behaviour
• Improved iOS input support (touch, mouse, pencil)
• Added Linux FreeDesktop.org Trash support