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_other/LedDevicePiBlaster.h

@@ -0,0 +1,59 @@
+#pragma once
+
+// Hyperion-Leddevice includes
+#include <leddevice/LedDevice.h>
+
+///
+/// Implementation of the LedDevice interface for writing to pi-blaster based PWM LEDs
+///
+
+class LedDevicePiBlaster : public LedDevice
+{
+public:
+	///
+	/// Constructs specific LedDevice
+	///
+	/// @param deviceConfig json device config
+	///
+	LedDevicePiBlaster(const QJsonObject &deviceConfig);
+
+	virtual ~LedDevicePiBlaster();
+
+	///
+	/// Sets configuration
+	///
+	/// @param deviceConfig the json device config
+	/// @return true if success
+	bool init(const QJsonObject &deviceConfig);
+
+	/// constructs leddevice
+	static LedDevice* construct(const QJsonObject &deviceConfig);
+	
+	///
+	/// Attempts to open the piblaster-device. This will only succeed if the device is not yet open
+	/// and the device is available.
+	///
+	/// @return Zero on succes else negative
+	///
+	int open();
+
+private:
+	///
+	/// Writes the colors to the PiBlaster device
+	///
+	/// @param ledValues The color value for each led
+	///
+	/// @return Zero on success else negative
+	///
+	int write(const std::vector<ColorRgb> &ledValues);
+
+	/// The name of the output device (very likely '/dev/pi-blaster')
+	QString _deviceName;
+
+	int _gpio_to_led[64];
+	char _gpio_to_color[64];
+
+	/// File-Pointer to the PiBlaster device
+	FILE * _fid;
+
+};