add: bootstrap.sh with correct permission

Author: inureyes

python-tensorflow/runner-scripts/bootstrap.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+BAI_MULTINODE_CONFIG_TF=$(/opt/backend.ai/bin/python /opt/container/setup_multinode.py)
+if [ -z "$BAI_MULTINODE_CONFIG_TF" ];
+then
+	echo "";
+else
+	echo ${BAI_MULTINODE_CONFIG_TF}
+	export TF_CONFIG="${BAI_MULTINODE_CONFIG_TF}"
+fi