x/globalfee

[Reecepbcups]

Pulled forward from Gaiav8 - SDK v45 for Juno v12

Commonwealth: https://commonwealth.im/juno/discussion/8386-implement-xglobalfee
Chain prop: https://www.mintscan.io/juno/proposals/68

Feature:

- Sets a minimum fee for the entire network
- A Node can set a higher fee than the minimum, but not lower
- Validators can not accept anything which is not in the globalfee params

After upgrade, community can decide on good fees / denoms to accept (usdc, juno, osmo)

junod tx gov submit-proposal param-change ~/Desktop/Work/paramChange.json --from $KEY --keyring-backend os --chain-id juno-1 --yes --broadcast-mode block

{
    "title": "MinimumGasPricesParam Change",
    "description": "add juno minimum fee",
    "changes": [
      {
        "subspace": "globalfee",
        "key": "MinimumGasPricesParam",
        "value": [{"denom":"ujuno","amount":"0.002500000000000000"}]
      }
    ],
    "deposit": "1000000ujuno"
}

[Reecepbcups]

@faddat built off main, and used the same as before. Works just fine... If you could update the commonwealth to this PR now. I closed the other. Ready for review

[the-frey]

LGTM 👍

Weird about that other thing.

[faddat]

@Reecepbcups - stuff's odd sometimes (re: rebuilding off of main) I'll put this on CW.