Merge pull request #10292 from opensourcerouting/pim6-addr-aux

pimd: start tackling IPv6 address operations

diff --cc pimd/pim_bsm.c
Simple merge

diff --cc pimd/pim_cmd.c
Simple merge

diff --cc pimd/pim_iface.c
Simple merge

diff --cc pimd/pim_msdp.c
Simple merge

diff --cc pimd/pim_nht.c
Simple merge

diff --cc pimd/pim_vty.c
Simple merge