acl-plugin: also print human-friendly format of 5tuple in packet trace
acl-plugin: also print human-friendly format of 5tuple in packet trace

The original version printed just a few u64s, which is useful for
directly working on the code, but not when figuring out what is
possibly a config or environment-related issue. So, add printing
the 5-tuple struct in a way that is usable by an operator.

Change-Id: I84cc3a239cdaff05ed31c3458cea198e38b58e03
Signed-off-by: Andrew Yourtchenko <eb6233fe2fbd585844f4fb8426b53b186ab379b1@gmail.com>

vpp-dev/vpp,vpp-dev/vpp,vpp-dev/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,vpp-dev/vpp,FDio/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,vpp-dev/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,FDio/vpp