v0.18.0

New features and enhancements

• Make events awaitable (#210 by @pascalzauberzeug, @falkoschindler)
• Provide a UI element for debugging GPIO pins via Lizard (#196 by @pascalzauberzeug, @falkoschindler)
• Introduce camera image callbacks (#197, #211, #212 by @NiklasNeugebauer, @falkoschindler, @rodja)
• Allow SVG overlays for timelapse videos (#209 by @rodja, @falkoschindler)
• Reduce flickering in timelapse videos by removing single frames from a different cam (#208 by @rodja)