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/LedDeviceAPA102.h

@@ -0,0 +1,30 @@
+#pragma once
+
+// hyperion incluse
+#include "ProviderSpi.h"
+
+
+///
+/// Implementation of the LedDevice interface for writing to APA102 led device.
+///
+class LedDeviceAPA102 : public ProviderSpi
+{
+public:
+	///
+	/// Constructs specific LedDevice
+	///
+	LedDeviceAPA102(const QJsonObject &deviceConfig);
+
+	/// constructs leddevice
+	static LedDevice* construct(const QJsonObject &deviceConfig);
+
+	virtual bool init(const QJsonObject &deviceConfig);
+private:
+	///
+	/// Writes the led color values to the led-device
+	///
+	/// @param ledValues The color-value per led
+	/// @return Zero on succes else negative
+	///
+	virtual int write(const std::vector<ColorRgb> &ledValues);
+};