Add scripts for device programming using JLINK

stm-firmware/program-device.gdb

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+target extended-remote :2331
+load
+monitor reset
+quit

stm-firmware/program-device.sh

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+#!/bin/bash
+
+JLinkGDBServer -if SWD -device STM32F407VE &
+sleep 2
+
+# Check if GDB server is still running
+gdbpid=`pidof JLinkGDBServer`
+
+if [[ $gdbpid == "" ]]; then
+	echo ""
+	echo "GDB Server not running! Check target connection."
+	exit
+fi
+
+arm-none-eabi-gdb -x program-device.gdb reflow-controller.elf
+
+kill $gdbpid