If the strategy to use for this packet is STRATEGY_TYPE_LOCAL_REMOTE we may want to forward the interest even if it should be aggregated.

This is useful when a local consumer socket and a remote one are asking for the same
content. If the interest coming from the remote socket is received before the one from the local socket, the second interest is aggregated in the PIT and no interest is satisfied, because the local producer socket need to get the content from the remote one.

Forward the interest if:
1) the strategy in the fib_entry stored in the pit entry is STRATEGY_TYPE_LOCAL_REMOTE (this is the IRIS case)
2) the ingress connection of the interest if a local connection
3) the ingress list of pit entry has no other local ingress connection.

If all these conditions are satisfied, send the interest.