route-to rules take ips now, not interfaces with optional ips.

reminded by bluhm@

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

Update regress tests for weighted round-robin (and recent pool bugfix)

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

show more ...

Update regress output files to -current behaviour
- non-pool translation/routing specification
- leftover bits from nat-to/rdr-to/binat-to

more updates for new pf with source-hash manually added to
loaded output as it doesn't currently appear as it should.

ok henning@

Handle default 'flags S/SA keep state', 'no state' and 'flags any'.

First pass at doing regress tests on the optimizer (pfctl -o).
Still need to add some more input files to test specific corner cases.