This pull request updates the `protocgen.sh` script to insert the `go_package` option to all of the downloaded proto files. A related pull request into the spec repo removes this options from the .proto files: https://github.com/tendermint/spec/pull/358

This pull requests, along with the related spec PR, aim to move the creation of the `tendermintdev/docker-build-proto` container into the spec repo. This change also relies on several fixes to that container that are made in the PR into the spec repo.

This PR implements the proto changes made in https://github.com/tendermint/spec/pull/352, removing the legacy messages that were used in the pex reactor.

## Description

clone proto files from spec in order to have them in a single location

closes https://github.com/tendermint/spec/issues/343

This should have been part of #7121, but I missed it.

## Description

- remove installation of protoc
- use buf protoc to generate proto stubs

prior to approving could someone test locally. I restarted my docker instance and its been stuck for 20+ minutes

Closes: #XXX

Reorganizes the Protobuf schemas. It is mostly bikeshedding, so if something is contentious or causes a lot of extra work then I'm fine with reverting. Some Protobuf and Go import paths will change.

* Move `abci/types/types.proto` to `abci/types.proto`.

* Move `crypto/keys/types.proto` and `crypto/merkle/types.proto` to `crypto/keys.proto` and `crypto/proof.proto`.

* Drop the use of `msgs` in filenames, as "message" is a very overloaded term (all Protobuf types are messages, and we also have `message Message`). Use `types.proto` as a catch-all, and otherwise name files by conceptual grouping instead of message kind.

## Description

have the defined abci proto types follow the same directory structure as in abci folder.

Closes: #XXX

## Description

This PR moves all proto files under one dir (`/proto`). The script to generate adding functionality to copy the files that still need to be in the same place. (abci & rpc)

renames every proto package from `tendermint.proto.<pkg_name>` to `tendermint.<pkg_name>`

Removes unneeded types in privval proto directory

Closes: #XXX

* test-vectors for backwards compatibility:

 - copy & paste test-vectors from v0.33.5 to ensure
 backwards compatibility for vote's SignBytes

* WIP: everything besides time seems to match :-/

* almost

* Found the culprit: field nums weren't consecutive ints ...

* fix order of partset header too

* this last votes-related test can easily be fixed

* some minor changes and fix last failing test

* move proto types back to stdtime, fix various linting

* use libs/protoio

* remvoe commented code

* add comments

* fix tests

* uncomment testscases

* dont ignore error panic

* fix signable test

* fix happy path testing

* fix comment

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

Closes #1007

* fix: fix proto-breakage

- this is amed to fix proto breakage for consumers

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* fix for importing third_party everywhere

* undo change

* test breakage change

* test ssh

* test https

* change ssh to https

* fix phony

* proto: add buf and protogen script

- add buf with minimal changes
- add protogen script to easier generate proto files

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* add protoc needs

* add some needed shell cmds

* remove buf from tools as it is not needed everytime

* add proto lint and breakage to ci

* add section in changelog and upgrading files

* address pr comments

* remove space in circle config

* remove spaces in makefile comment

* add section on contributing on how to work with proto

* bump buf to 0.7

* test bufbuild image

* test install make in bufbuild image

* revert to tendermintdev image

* Update Makefile

Co-Authored-By: Anton Kaliaev <anton.kalyaev@gmail.com>

Co-authored-by: Anton Kaliaev <anton.kalyaev@gmail.com>