protodoc: Add redirects for v2 protos to current version and links to old

[phlax]

Commit Message: protodoc: Add redirects for v2 protos to current version and links to old
Additional Description:
Risk Level:
Testing:
Docs Changes:
Release Notes:
Platform Specific Features:
[Optional Runtime guard:]
[Optional Fixes #Issue] Fix #16297
[Optional Deprecated:]
[Optional API Considerations:]

[repokitteh-read-only]

CC @envoyproxy/api-shepherds: Your approval is needed for changes made to (api/envoy[\w/]*/(v1alpha\d?|v1|v2alpha\d?|v2))|(api/envoy/type/(matcher/)?\w+.proto).
CC @envoyproxy/api-shepherds: Your approval is needed for changes made to api/envoy/.
envoyproxy/api-shepherds assignee is @adisuissa
CC @envoyproxy/api-watchers: FYI only for changes made to api/envoy/.

🐱

Caused by: #16303 was opened by phlax.

see: more, trace.

[phlax]

docs rendered here - https://storage.googleapis.com/envoy-pr/16303/docs/index.html

[phlax]

this PR now requires jq which i think is a good thing to add in general

I have hacked it in here for now - but ive also raised a PR in envoy-build-tools to add envoyproxy/envoy-build-tools#132

there is alternately a bazel recipe i found here https://github.com/kythe/kythe/blob/master/third_party/jq.BUILD

im happy to resolve in any of the above ways - as long as we can add it

[htuch]

Code looks good. Looking at the docs, the box on the RHS is a bit of an eye sore. I know you are thinking of tabs here, is there any way to make the docs less cluttered before landing them?

[phlax]

Code looks good. Looking at the docs, the box on the RHS is a bit of an eye sore. I know you are thinking of tabs here, is there any way to make the docs less cluttered before landing them?

this is the best i could come up with before shifting things to tabs - it needs to work in a few different situtations

this is far from ideal - but i would like to get this landed and then work on the tabs - which will take some time in terms of figuring out how best to render - im working on it already tho...

[repokitteh-read-only]

CC @envoyproxy/dependency-shepherds: Your approval is needed for changes made to (bazel/.*repos.*\.bzl)|(bazel/dependency_imports\.bzl)|(api/bazel/.*\.bzl)|(.*/requirements\.txt)|(.*\.patch).

🐱

Caused by: #16303 was synchronize by phlax.

see: more, trace.

[phlax]

/retest

[repokitteh-read-only]

Retrying Azure Pipelines:
Retried failed jobs in: envoy-presubmit

🐱

Caused by: a #16303 (comment) was created by @phlax.

see: more, trace.

[htuch]

LGTM, thanks!

I think the current UX is fine for interim, looking forward to a tabs focused replacement.

[htuch]

/lgtm deps