imp(feemarket): update BaseFee based on GasWanted (#1105)

* add gasWanted transient store keys

* add gasWanted transient store keeper functions

* add gasWanted transient store tracker

* add comment

* remove unncesary comment

* remove unnecesary function

* fix tests

* fix bad comment

* remove unnecesary comment

* update comment

* update changelog

* Update CHANGELOG.md

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* add GasWantedDecorator

* remove unnecesary comments

* gasWanted decorator test

* fix tests

* fix tests and build

* fix lint

* updated end block event

* Update app/ante/fee_market.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* fix undeclared variable

* Update app/ante/fee_market_test.go

* remove unnecesary line

* migrate MinGasMultiplier to FeeMarket module

* set limited gas wanted

* remove old newKeeper param

* update proto comment

* fix test

* update comments

* Update x/feemarket/keeper/abci.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* address comments from review

* tidy

* tests

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

rpc/backend/backend.go

@@ -30,8 +30,7 @@ type BackendI interface { // nolint: revive
 // CosmosBackend implements the functionality shared within cosmos namespaces
 // as defined by Wallet Connect V2: https://docs.walletconnect.com/2.0/json-rpc/cosmos.
 // Implemented by Backend.
-type CosmosBackend interface {
-	// TODO: define
+type CosmosBackend interface { // TODO: define
 	// GetAccounts()
 	// SignDirect()
 	// SignAmino()