introduced the `interface` URI param support in `replication`

[TarantoolBot]

Now a URI passed to the box.cfg.replication can contain interface
parameter specifying the name of the interface to bind the connection
to the URI to.

Examples of the box.cfg.replication value:

• {uri1, params = {interface = 'enp0s31f6'}}
• {uri1, uri2, default_params = {interface = 'enp0s31f6'}}

• {
    uri1, {uri2, params = {interface = 'wlp0s20f3'}}, uri3,
    default_params = {interface = 'enp0s31f6'}
  }
  

Requested by @mkostoevr in tarantool/tarantool@0fcb78b.