public static byte[] add(final byte[] a, final byte[] b, final byte[] c) {
        byte[] result = new byte[a.length + b.length + c.length];
        System.arraycopy(a, 0, result, 0, a.length);
        System.arraycopy(b, 0, result, a.length, b.length);
        System.arraycopy(c, 0, result, a.length + b.length, c.length);
        return result;
    }
Concatenate byte arrays.

@param a first third
@param b second third
@param c third third
@return New array made from a, b and c
stroom-bytebuffer/src/main/java/stroom/bytebuffer/hbase/Bytes.java