Token Transfer Timestamps

[RobertOttBS]

When we create a token pool with a blocknumber of the creation of the smart contract, Firefly imports all the mint/transfer activities form the blockchain. However, the timestamp of these events is set to the import timestamp and not to the timestamp when the actuall mint/transfer occured. It would be more acurate, if the timestamp would show when the event actually happened on-chain.

That only happens on the 'Tokens' part of the firefly UI. On the 'Blockchain' part of the UI, event listeners show the correct timestamp when the event occured on-chain