Devcontainer (#29259)

* mvp devcontainer. builds, runs and UI works

* fix indentation

* enable color and fix openpilot_env path

* separate dockerfile for devcontainer

* use prebuilt image

* Fix openpilot_env setup

* Add dev container section in readme

* Fix typo

* Fix typo again

* Move dev dockerfile to .devcontainer dir

* Update README

* Add note about x11 forwarding on macos

* Update dev container json

* Fix typo

* Override DISPLAY on macOS

* Mention XAUTHORITY for macOS setup in README

* fix typo

* Add devcontainer CI test

* Rename to devcontainer

* Fix git issues

* ripgrep

* Link instead of vscode manual

* Replace raw path with containerWorkspaceFolder

* Fix typo

* Remove dev tools workflow

* Link away X11 forwarding setup isntructions for mac

* Remove fork consrtaint, add test run of scons

* Add submodules as safe.directories in postStartCommand

* Remove openpilot_env references

* Add scons cache volume

---------

Co-authored-by: Robbe Derks <robbe@localhost.localdomain>
Co-authored-by: Kacper Rączy <gfw.kra@gmail.com>
old-commit-hash: d71a7190f1210f5ac97ce16892552ecf495e2437

.devcontainer/Dockerfile

@@ -0,0 +1,6 @@
+FROM ghcr.io/commaai/openpilot-base:latest
+
+# remove gitconfig if exists, since its gonna be replaced by host one
+RUN rm -f /root/.gitconfig
+RUN apt update && apt install -y vim net-tools usbutils htop ripgrep
+RUN pip install ipython jupyter jupyterlab