Update x/gov to use Any (#6147)

* Update x/gov to use Any

* Fixes

* Remove MsgSubmitProposalLegacy

* Update CHANGELOG.md

* Add RegisterInterfaces for x/distribution, x/params, & x/upgrade

* Fix query JSON issue

* Fix gov tests

* Revert custom Any Equals

* Re-remove types

* Rename receivers

* Fix imports in gov

* Sort imports

* Make amino JSON signing work with Any

* Run proto-gen

* Create full amino wrapper

* Fix errors

* Fixes

* Fix tests

* Test fixes

* Fix tests

* Linting

* Update ADR 019 and CHANGELOG

* Updated ADR 019

* Extract Marshal/UnmarshalProposal

* fix error

* lint

* linting

* linting

* Update client/keys/parse.go

Co-authored-by: Marko <marbar3778@yahoo.com>

* linting

* Update docs/architecture/adr-019-protobuf-state-encoding.md

Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Update docs/architecture/adr-019-protobuf-state-encoding.md

Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Address review feedback

* Add godocs

* Fix errors

* fix errors

* revert file

* Address review feedback

* Address review feedback

* Stacktrace debug flag

* Fix tests

* Address review feedback

Co-authored-by: sahith-narahari <sahithnarahari@gmail.com>
Co-authored-by: Marko <marbar3778@yahoo.com>
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

types/result.go

@@ -10,6 +10,7 @@ import (
 	yaml "gopkg.in/yaml.v2"
 
 	"github.com/cosmos/cosmos-sdk/codec"
+	"github.com/cosmos/cosmos-sdk/codec/types"
 
 	ctypes "github.com/tendermint/tendermint/rpc/core/types"
 )
@@ -264,3 +265,24 @@ func ParseABCILogs(logs string) (res ABCIMessageLogs, err error) {
 	err = json.Unmarshal([]byte(logs), &res)
 	return res, err
 }
+
+var _, _ types.UnpackInterfacesMessage = SearchTxsResult{}, TxResponse{}
+
+// UnpackInterfaces implements UnpackInterfacesMessage.UnpackInterfaces
+//
+// types.UnpackInterfaces needs to be called for each nested Tx because
+// there are generally interfaces to unpack in Tx's
+func (s SearchTxsResult) UnpackInterfaces(unpacker types.AnyUnpacker) error {
+	for _, tx := range s.Txs {
+		err := types.UnpackInterfaces(tx, unpacker)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// UnpackInterfaces implements UnpackInterfacesMessage.UnpackInterfaces
+func (r TxResponse) UnpackInterfaces(unpacker types.AnyUnpacker) error {
+	return types.UnpackInterfaces(r.Tx, unpacker)
+}