Add drm rules for monitor change event

src/rules/90-drm.rules

@@ -0,0 +1 @@
+SUBSYSTEM=="drm", ENV{MONITOR_LOCK}="/tmp/monitorlock", ENV{SONOLOG}="/tmp/sonolog.log", RUN+="/usr/local/bin/setupmonitor.sh"

src/scripts/setupmonitor.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+# This script will run when drm change event detected.
+# This sctipt should be placed in /usr/local/bin
+# SONOLOG file must be set beforehand in the udev rule
+# MONITOR_LOCK should be set
+(
+    flock -n 100 || exit 1
+    sleep 1 # wait until all changes take place
+    xrandr --auto
+    python3 /usr/bin/local/python/setupmonitor.py
+    echo $(data) - INFO - Setup Monitor Done >> $SONOLOG
+) 100> $MONITOR_LOCK