Increment version
Adding a capture test, refactor rand daddr

Let's reuse PacketFu::Utils.rand_routable_daddr for testing as well as
for whoami?
Stop being dumb about filtering
Test for bpf and filter equiv
Set the filter if you have a filter
Test the absence of filtering
Land #27, have filtering be more useful

Before, there was no test coverage for BPF filtering. Now, BPF filtering
is not only tested, but usable in several situations where it wasn't
before.