Add autogenerated protos for `v1.0`

This (draft) PR is the first to providing support for CometBFT v1.0.

The PR appears to be massive but the reason is the tons of newly auto-generated code it introduces. For this reason, please don't review it in one shot; rather use the following description of commits:

Commit 1: Ignore. It is the result of running the protobuf generation on my machine, which produces a few changes in the auto-generated code.
Commit 2: Review. First step: add the logic to handle both Tendermint and CometBFT protobufs. We might decide to deprecate the Tendermint part.
Commit 3: Ignore. The effect in auto-generated code of commit 2.
Commit 4: Review. Adapted protobuf generation tweaks to CombetBFT protos. Commit 2, just copy-pasted the Tendermint ones. This commit allows to see how I adapted them.
Commit 5: Ignore. The effect in auto-generated code of commit 4.
Commit 6: Review. As there are several levels of modules now, the preexisting mechanism to generate the modules was too rigid. This commit introduces and extended version
Commit 7: Ignore. The effect in auto-generated code of commit 6.
Commit 8: Review. Fixes needed in the manual code so that the new proto bufs builds correctly
Commit 9: Review. Changelog.

Note: even if this PR is likely to be ready for review, I decided to leave it a draft PR because we need to discuss whether we should be forking tendermint-rs into cometbft-rs and move this PR there.

[ ] Referenced an issue explaining the need for the change
[ ] Updated all relevant documentation in docs
[ ] Updated all code comments where relevant
[ ] Wrote tests
[ ] Added entry in .changelog/

informalsystems / tendermint-rs

Add autogenerated protos for `v1.0` #1381