Leddevices source tree refactoring (#461)

* rework structure of leddevice source tree

* fix data type vor v4l sig detection value in webui

* automate leddevicefactory.cpp

libsrc/leddevice/dev_spi/LedDeviceP9813.cpp

@@ -0,0 +1,47 @@
+#include "LedDeviceP9813.h"
+
+LedDeviceP9813::LedDeviceP9813(const QJsonObject &deviceConfig)
+	: ProviderSpi()
+{
+	_deviceReady = init(deviceConfig);
+}
+
+LedDevice* LedDeviceP9813::construct(const QJsonObject &deviceConfig)
+{
+	return new LedDeviceP9813(deviceConfig);
+}
+
+bool LedDeviceP9813::init(const QJsonObject &deviceConfig)
+{
+	ProviderSpi::init(deviceConfig);
+
+	_ledBuffer.resize(_ledCount * 4 + 8, 0x00);
+	
+	return true;
+}
+
+int LedDeviceP9813::write(const std::vector<ColorRgb> &ledValues)
+{
+	uint8_t * dataPtr = _ledBuffer.data();
+	for (const ColorRgb & color : ledValues)
+	{
+		*dataPtr++ = calculateChecksum(color);
+		*dataPtr++ = color.blue;
+		*dataPtr++ = color.green;
+		*dataPtr++ = color.red;
+	}
+
+	return writeBytes(_ledBuffer.size(), _ledBuffer.data());
+}
+
+uint8_t LedDeviceP9813::calculateChecksum(const ColorRgb & color) const
+{
+	uint8_t res = 0;
+
+	res |= (uint8_t)0x03 << 6;
+	res |= (uint8_t)(~(color.blue  >> 6) & 0x03) << 4;
+	res |= (uint8_t)(~(color.green >> 6) & 0x03) << 2;
+	res |= (uint8_t)(~(color.red   >> 6) & 0x03);
+
+	return res;
+}