Add and remove turn users

src/freedombone

     echo '## mod_tmpuser.' >> /etc/turnserver/turnserver.conf
     echo 'mod_tmpuser = false' >> /etc/turnserver/turnserver.conf
 
+    echo "${MY_USERNAME}:password:${DEFAULT_DOMAIN_NAME}:authorized" > /etc/turnserver/turnusers.txt
+    
     systemctl restart turnserver
 
     echo 'install_sip_turn' >> $COMPLETION_FILE

src/freedombone-adduser

 COMPLETION_FILE=$HOME/${PROJECT_NAME}-completed.txt
 SIP_EXTENSION=
 FULLBLOG_DOMAIN_NAME=
+DEFAULT_DOMAIN_NAME=
 
 if [ ! $MY_USERNAME ]; then
     echo $'No username was given'
     usermod -aG sipwitch $MY_USERNAME
 fi
 
+# add user for SIP STUN/TURN
+if [ -d /etc/turnserver ]; then
+    if grep -q "DEFAULT_DOMAIN_NAME" $CONFIGURATION_FILE; then
+        DEFAULT_DOMAIN_NAME=$(grep "DEFAULT_DOMAIN_NAME" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
+        echo "${MY_USERNAME}:${NEW_USER_PASSWORD}:${DEFAULT_DOMAIN_NAME}:authorized" >> /etc/turnserver/turnusers.txt
+    fi
+fi
+
 # add user menu on ssh login
 if ! grep -q 'control' /home/$MY_USERNAME/.bashrc; then
     echo 'control' >> /home/$MY_USERNAME/.bashrc

src/freedombone-rmuser

     /var/www/owncloud/occ user:delete $MY_USERNAME
 fi
 
+# remove user from SIP TURN/STUN
+if [ -d /etc/turnserver ]; then
+    sed -i "/${MY_USERNAME}:/d" /etc/turnserver/turnusers.txt
+fi
+
 userdel -r $MY_USERNAME
 
 if [ -d /home/$MY_USERNAME ]; then