* CORDA-866: Implement removal of stale nodes from network - backport (#3128)
* CORDA-866: Implement removal of stale nodes from network
Backported
* Implement removal of stale nodes from network
Add eventHorizon to NetworkParameters structure. Add republishing of
node info on 1 day intervals - it is treated by network map as heartbeat from node indicating if it's alive or not. Add removal of old node infos on network map signing.
* Add copy method to NetworkParameters data class
Add JvmOverloads annotation to the constructor, because it's data class
exposed in API
* Fix test
* ENT-1933: make NetworkParameters serialization compatible (#3234)
* ENT-1933: make NetworkParameters serialization compatible
* Fixes after cherry-pick