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/CMakeLists.txt

@@ -38,6 +38,8 @@ SET(Leddevice_HEADERS
 	${CURRENT_SOURCE_DIR}/LedDeviceFile.h
 	${CURRENT_SOURCE_DIR}/LedDeviceFadeCandy.h
 	${CURRENT_SOURCE_DIR}/LedDeviceUdp.h
+	${CURRENT_SOURCE_DIR}/LedDeviceUdpRaw.h
+	${CURRENT_SOURCE_DIR}/LedUdpDevice.h
 	${CURRENT_SOURCE_DIR}/LedDeviceHyperionUsbasp.h
 	${CURRENT_SOURCE_DIR}/LedDeviceTpm2.h
 	${CURRENT_SOURCE_DIR}/LedDeviceAtmo.h
@@ -62,6 +64,8 @@ SET(Leddevice_SOURCES
 	${CURRENT_SOURCE_DIR}/LedDeviceFile.cpp
 	${CURRENT_SOURCE_DIR}/LedDeviceFadeCandy.cpp
 	${CURRENT_SOURCE_DIR}/LedDeviceUdp.cpp
+	${CURRENT_SOURCE_DIR}/LedDeviceUdpRaw.cpp
+	${CURRENT_SOURCE_DIR}/LedUdpDevice.cpp
 	${CURRENT_SOURCE_DIR}/LedDeviceHyperionUsbasp.cpp
 	${CURRENT_SOURCE_DIR}/LedDevicePhilipsHue.cpp
 	${CURRENT_SOURCE_DIR}/LedDeviceTpm2.cpp