public static String toString(final byte[] b) {
        if (b == null) {
            return null;
        }
        return toString(b, 0, b.length);
    }
Convert a byte[] into a string. Charset is assumed to be UTF-8.

@param b Presumed UTF-8 encoded byte array.
@return String made from <code>b</code>
stroom-bytebuffer/src/main/java/stroom/bytebuffer/hbase/Bytes.java