Renamed the lowlevel providers from LedXXXDevice to ProviderXXX (#206)

%s/LedUdpDevice/ProviderUdp/g
git mv LedUdpDevice.cpp ProviderUdp.cpp
git mv LedUdpDevice.h ProviderUdp.h

vi `grep -l LedHID *`
%s/LedHIDDevice/ProviderHID/g
git mv LedHIDDevice.cpp ProviderHID.cpp
git mv LedHIDDevice.h ProviderHID.h

vi `grep -l LedRs *`
%s/LedRs232Device/ProviderRs232/g
git mv LedRs232Device.cpp ProviderRs232.cpp
git mv LedRs232Device.h ProviderRs232.h

vi `grep -l LedSpi *`
%s/LedSpiDevice/ProviderSpi/g
git mv LedSpiDevice.cpp ProviderSpi.cpp
git mv LedSpiDevice.h ProviderSpi.h

libsrc/leddevice/ProviderSpi.h

@@ -0,0 +1,73 @@
+#pragma once
+
+// Linux-SPI includes
+#include <linux/spi/spidev.h>
+
+// Hyperion includes
+#include <leddevice/LedDevice.h>
+
+///
+/// The ProviderSpi implements an abstract base-class for LedDevices using the SPI-device.
+///
+class ProviderSpi : public LedDevice
+{
+public:
+	///
+	/// Constructs specific LedDevice
+	///
+	/// @param deviceConfig json device config
+	///
+	ProviderSpi(const Json::Value &deviceConfig);
+
+	///
+	/// Sets configuration
+	///
+	/// @param deviceConfig the json device config
+	/// @return true if success
+	virtual bool setConfig(const Json::Value &deviceConfig);
+
+	///
+	/// Destructor of the LedDevice; closes the output device if it is open
+	///
+	virtual ~ProviderSpi();
+
+	///
+	/// Opens and configures the output device
+	///
+	/// @return Zero on succes else negative
+	///
+	int open();
+
+protected:
+	///
+	/// Writes the given bytes/bits to the SPI-device and sleeps the latch time to ensure that the
+	/// values are latched.
+	///
+	/// @param[in[ size The length of the data
+	/// @param[in] data The data
+	///
+	/// @return Zero on succes else negative
+	///
+	int writeBytes(const unsigned size, const uint8_t *data);
+
+	/// The name of the output device
+	std::string _deviceName;
+
+	/// The used baudrate of the output device
+	int _baudRate_Hz;
+
+	/// The time which the device should be untouched after a write
+	int _latchTime_ns;
+
+	/// The File Identifier of the opened output device (or -1 if not opened)
+	int _fid;
+
+	/// which spi clock mode do we use? (0..3)
+	int _spiMode;
+
+	/// 1=>invert the data pattern
+	bool _spiDataInvert;
+
+	/// The transfer structure for writing to the spi-device
+	spi_ioc_transfer _spi;
+};