Add helper for 4h stream in 720p

stream_pattern_720p_4h.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+if [[ $# -lt 2 ]] ; then
+    echo "Not enough arguments supplied" >&2
+    echo "you need to pass the peertubeserver name as the fisrt argument" >&2
+    echo "and the streaming key as the second argument" >&2
+    echo "expl: `basename $0` sub.domain.tld 69ac2d29-eba4-4d5f-a3a6-6047e6768ffb" >&2
+    exit 1
+fi
+
+./stream_pattern_sine.sh $1 $2 14400 1280x720 2048 160