added MapUtils to deal with object/string translation in acs7

package com.inteligr8.alfresco.acs;

import java.util.HashMap;

import java.util.Map;

import java.util.Map.Entry;

public class MapUtils {

	public static Map<String, String> toStringMap(Map<String, ?> map) {

		if (map == null)

			return null;

		Map<String, String> strmap = new HashMap<>(map.size());

		for (Entry<String, ?> element : map.entrySet()) {

			String strvalue = element.getValue() == null ? null : element.getValue().toString();

			strmap.put(element.getKey(), strvalue);

		}

		return strmap;

	}

}