update regression tests wrt skip steps (fixed in pfctl.c rev1.305);
ok henning mcbride (a while back)

Update regress tests for the following changes:
- if_addr RB_TREE (Address sort differently on an interface)
- skip steps changes
- RDOMAIN
- reordering of address/port tests
- fastroute is gone
-

Update regress tests for the following changes:
- if_addr RB_TREE (Address sort differently on an interface)
- skip steps changes
- RDOMAIN
- reordering of address/port tests
- fastroute is gone
- keep state is no longer printed by default
- lo0 now has link-local scope address in addition to ::1

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add several new tests for pfctl, and fix the output of some existing
tests for the updated pfctl.

OK henning@, mcbride@