added build linux script

build-linux.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+# Make sure to have the required qt libraries installed
+# sudo apt install build-essential qtbase5-dev libqt5serialport5-dev
+
+rm -f esptool-gui
+rm -f *.o
+
+qmake
+make
+
+rm -rf tool-esptool
+cp -r tools-linux/tool-esptool .