scripting: Format java code by using astyle tool

Change-Id: Ifcd90612f22282c16efdbf4d300b8164bf68f760
Reviewed-on: https://gerrit.libreoffice.org/11304
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

scripting/Format_java_code.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+astyle --options=astyle-java.conf --verbose --recursive ./*.java

scripting/astyle-java.conf

@@ -0,0 +1,19 @@
+--style=java
+--mode=java
+--indent-switches
+--indent-cases
+--min-conditional-indent=0
+--max-instatement-indent=40
+--break-blocks
+--unpad-paren
+--align-reference=name
+--pad-oper
+--unpad-paren
+--add-brackets
+-s4
+--indent-col1-comments
+--lineend=linux
+--ignore-exclude-errors
+--suffix=none
+--preserve-date
+--formatted