Initial release
- Accelerator MPU6050 input.
- Classes for Car, Bridge, Ramp and Loop with natural gravity.
- Light effects by NeoPattern library.
- Tone generation without dropouts by use of hardware timer output.
- Winner melody by PlayRTTTL library.
- Compensation for blocked millis() timer during draw.
- Checks for RAM availability.
- Overlapping of cars is handled by using addPixelColor() for drawing.
- Dynamic activation of up to 4 cars.