Create some temp files to indicate that the container has executed the init scripts for the first time

This could be useful for the user scripts to read to know if this is the first time they are running on this container or if the container was just restarted

overlay/entrypoint.sh

@@ -29,6 +29,7 @@ for init_script in /etc/cont-init.d/*.sh ; do
     sed -i 's/\r$//' "${init_script:?}"
     source "${init_script:?}"
 done
+touch /tmp/.first-run-init-scripts
 
 # Execute any user generated init scripts
 mkdir -p ${USER_HOME:?}/init.d
@@ -54,6 +55,7 @@ for user_init_script in ${USER_HOME:?}/init.d/*.sh ; do
     fi
 
 done
+touch /tmp/.first-run-user-init-scripts
 
 # Start supervisord
 echo