feat: add authz support for ics20 (backport #3079)

[mergify]

This is an automatic backport of pull request #3079 done by Mergify.
Cherry-pick of 6c008ea has failed:

On branch mergify/bp/release/v7.0.x/pr-3079
Your branch is up to date with 'origin/release/v7.0.x'.

You are currently cherry-picking commit 6c008ea2.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   docs/ibc/proto-docs.md
	new file:   e2e/tests/transfer/authz_test.go
	modified:   go.mod
	new file:   modules/apps/transfer/types/authz.pb.go
	modified:   modules/apps/transfer/types/codec.go
	modified:   modules/apps/transfer/types/errors.go
	new file:   modules/apps/transfer/types/transfer_authorization.go
	new file:   modules/apps/transfer/types/transfer_authorization_test.go
	renamed:    modules/apps/transfer/types/ack_test.go -> modules/apps/transfer/types/types_test.go
	new file:   proto/ibc/applications/transfer/v1/authz.proto

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   .github/workflows/e2e-manual-simd.yaml
	deleted by us:   e2e/testconfig/testconfig.go
	deleted by us:   e2e/testsuite/codec.go
	deleted by us:   e2e/testsuite/testsuite.go
	deleted by us:   e2e/testvalues/values.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

---

Mergify commands and options

More conditions and actions can be found in the documentation.

You can also trigger Mergify actions by commenting on this pull request:

• @Mergifyio refresh will re-evaluate the rules
• @Mergifyio rebase will rebase this PR on its base branch
• @Mergifyio update will merge the base branch into this PR
• @Mergifyio backport <destination> will backport this PR on <destination> branch

Additionally, on Mergify dashboard you can:

• look at your merge queues
• generate the Mergify configuration with the config editor.

Finally, you can contact us on https://mergify.com