[ADD] Allow Nodes to top up bond when they are active
This is a follow up of the discussion in #mainnet channel start from https://discord.com/channels/838986635756044328/839002619481554955/1006060027695595620
There is a consensus to allow node to top up bond when they are active. We shall keep monitor , if node operator bond up last and leave immediately to game the system , then will follow up to snapshot node's bond at churn
Edited by Heimdall