Added V20 ConnectionStatistics Handling, Fixed V22 ConnectionStatistics handling using 1 byte packing to access unaligned struct data (Reported by Leonid)

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4965 43c1dc8c-776e-4df2-8ef1-6e829299be21