[Thread] add a script for make-pretty

This make-pretty.sh can be called from any where and it formats only
java code under packages/modules/Connectivity/thread/

Test: ./thread/scripts/make-pretty.sh
Change-Id: I1b24025cf0267c81a7b133d1e8a08f77cc7ddc0e
diff --git a/thread/scripts/make-pretty.sh b/thread/scripts/make-pretty.sh
new file mode 100755
index 0000000..e4bd459
--- /dev/null
+++ b/thread/scripts/make-pretty.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+GOOGLE_JAVA_FORMAT=$SCRIPT_DIR/../../../../../prebuilts/tools/common/google-java-format/google-java-format
+
+$GOOGLE_JAVA_FORMAT --aosp -i $(find $SCRIPT_DIR/../ -name "*.java")