EVPN-VXLAN routed VPLS multicast routing support

IPv4 and IPv6 multicast routing is supported in an EVPN-VXLAN VPRN and IES routed VPLS service through its IP interface when the source of the multicast stream is on one side of its IP interface and the receivers are on either side of the IP interface. For example, the source for multicast stream G1 could be on the IP side, sending to receivers on both other regular IP interfaces and the VPLS of the routed VPLS service, while the source for group G2 could be on the VPLS side sending to receivers on both the VPLS and IP side of the routed VPLS service. See IPv4 and IPv6 multicast routing support for more details.