Changed the::comparable to CRTP, changed all derived classes to not use vtable whenever possible.
Added the::system::net::ip_address4::from_ip_agnostic_address/netmask_to_prefix/prefix_to_netmask/to_host_order_address/to_network_order_address.
Added the::system::net::ip_address6::from_ip_agnostic_address/from_ipv4_compatible/from_ipv4_mapped.
Fixed the::system::net::physical_address::to_string.
Made the::system::net::physical_address comparable.
Added to_string functions for netinfo enums.