Moved all devices to separate library and added 'Factory' for device creation.

Former-commit-id: 26cab1b85b00406240689ad9c1018f0307028fe4

include/leddevice/LedDevice.h

@@ -0,0 +1,35 @@
+#pragma once
+
+// STL incldues
+#include <vector>
+
+// Utility includes
+#include <utils/ColorRgb.h>
+
+///
+/// Interface (pure virtual base class) for LedDevices.
+///
+class LedDevice
+{
+public:
+
+	///
+	/// Empty virtual destructor for pure virtual base class
+	///
+	virtual ~LedDevice()
+	{
+		// empty
+	}
+
+	///
+	/// Writes the RGB-Color values to the leds.
+	///
+	/// @param[in] ledValues  The RGB-color per led
+	///
+	/// @return Zero on success else negative
+	///
+	virtual int write(const std::vector<ColorRgb>& ledValues) = 0;
+
+	/// Switch the leds off
+	virtual int switchOff() = 0;
+};

include/leddevice/LedDeviceFactory.h

@@ -0,0 +1,27 @@
+
+#pragma once
+
+// Json includes
+#include <json/json.h>
+
+// Leddevice includes
+#include <leddevice/LedDevice.h>
+
+
+///
+/// The LedDeviceFactory is responsible for constructing 'LedDevices'
+///
+class LedDeviceFactory
+{
+public:
+
+	///
+	/// Constructs a LedDevice based on the given configuration
+	///
+	/// @param deviceConfig The configuration of the led-device
+	///
+	/// @return The constructed LedDevice or nullptr if configuration is invalid. The ownership of
+	/// the constructed LedDevice is tranferred to the caller
+	///
+	static LedDevice * construct(const Json::Value & deviceConfig);
+};