New QT based udp driver (#662)

* Removed -HUP so the default -TERM signal is sent instead.
- hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config

Changed pgrep to add '-x' so it wont partial match on the exe name.
- I have multiple instances with multiple hyperiond-instance1 names
- this ensures the service script only kills the right process

* reversing errant change to hyperion.systemd.sh

* cleaned up a couple of compiler warnings

* moved bitpair_to_byte initialiser to (hopefully) work with older GCC

* compiler warning in udp driver
removed some tabs in ws2812b.cpp

* formatting - spaces to tabs

* moved rpi_281x to tag sk6812-v1.0

* moving to my fork of rpi_281x

* half way thru re merging the newudp support

* Whoops.... dont know how it compiled before..

* Removed debugging that was commented out


Former-commit-id: ac4330422f93f3d594dfcba5593759288298d25e

libsrc/leddevice/LedDeviceFactory.cpp

@@ -33,6 +33,7 @@
 #include "LedDeviceFile.h"
 #include "LedDeviceFadeCandy.h"
 #include "LedDeviceUdp.h"
+#include "LedDeviceUdpRaw.h"
 #include "LedDeviceHyperionUsbasp.h"
 #include "LedDevicePhilipsHue.h"
 #include "LedDeviceTpm2.h"
@@ -318,6 +319,16 @@ LedDevice * LedDeviceFactory::construct(const Json::Value & deviceConfig)
 		const unsigned maxPacket   = deviceConfig["maxpacket"].asInt();
 		device = new LedDeviceUdp(output, rate, protocol, maxPacket);
 	}
+	else if (type == "udpraw")
+	{
+		const std::string output = deviceConfig["output"].asString();
+		const unsigned rate      = deviceConfig["rate"].asInt();
+		const unsigned latchtime      = deviceConfig.get("latchtime",500000).asInt();
+
+		LedDeviceUdpRaw* deviceUdpRaw = new LedDeviceUdpRaw(output, rate, latchtime);
+		deviceUdpRaw->open();
+		device = deviceUdpRaw;
+	}
 	else if (type == "tpm2")
 	{
 		const std::string output = deviceConfig["output"].asString();