Implement FungibleTokenMetadataViews in FlowToken

[sisyphusSmiling]

Issue To Be Solved

FlowToken needs to be updated with implementation of FungibleTokenMetadataViews introduced in FLIP 1087

Given the support for metadata, we may also consider implementing ViewResolver, though that's an optional consideration.

Suggest A Solution

Vaults should implement MetadataViews.Resolver and resolve FTView, FTDisplay, and FTVaultData.

If it's decided that FlowToken implements ViewResolver, then the relevant contract methods should also be added and resolve FTVaultData.

[joshuahannan]

@sisyphusSmiling Is this something you'll be able to work on or should I handle it?

[sisyphusSmiling]

@joshuahannan I can get this done if you have other work to complete. I l likely wouldn't get to it until next week as Hybrid Custody audit response and ETH Waterloo will have my attention this week

[joshuahannan]

I'm gonna work on this this week @sisyphusSmiling so no need for you to do it. Thanks for offering though!