Add MaxRetryCount field to remote config

[rgngl]

This way the EndpointWriter doesn't indefinitely try to connect to a non-existing host.

[c10h22]

This fix is really needed as we don't want to retry indefinitely to connect to a host that goes offline.
We can make this better by implementing a custom MaxRetryCount by state.address a kind of callback function that returns an integer based on the parameter state.address

[nightwolfz]

Very much needed.