CC-2016: Rearrange python scripts for reusability

-moved files

python_apps/pypo/scripts/library/interactive.screen

@@ -0,0 +1,15 @@
+# Launch with: screen -c interactive.screen
+screen -t Liquidsoap liquidsoap --interactive 'set("log.file.path","/tmp/interactive.log") system("echo \"setenv PID #{getpid()}\" > /tmp/interactive.env")'
+verbose
+# Yeah, this is a trick
+# to wait for interactive.env
+# to be created
+logfile /dev/null
+log
+source /tmp/interactive.env
+screen -t Log tail --pid=$PID -f /tmp/interactive.log
+split -v
+select 0
+focus
+select 1
+focus