Version 0.34-alpha

Fixes, optimizations, and new features in this release:

• High DPI support on Windows
• Now gamepad discovery is started automatically on iOS and tvOS
• Color can now be constructed from strings like "#FFFFFF"
• Shape renderer can now render lines with a specified thickness
• Added helper for converting UTF-32 back to UTF-8
• Now a console window is being created for debug builds on Windows
• Now it is possible to disable or enable screensavers while Ouzel is running
• Mip-map generation is now significantly faster
• Scene nodes now can be passed as raw pointers or unique_ptr (to transfer ownership)
• Engine now dispatches start/stop events when it begins/finishes running
• Scissor rectangle can now be passed to Component's draw method
• Textures can now have custom pixel format
• Animators are now components
• Now debug renderer can be enabled with a debugRenderer setting
• Resource paths now can also be absolute and now a flag can be passed to search for resources in current directory only
• Perspective projection is now being calculated correctly
• Buffers are now being cleared in correct order and depth buffer clear flag is being respected
• Now interval can be passed to UpdateCallback to call it with a specified frequency