Support adding bazel to VSCode dev container

[eburnette]

Many common utilities like go and git can be installed in a dev container using this syntax in your devcontainer.json file:

	"features": {
		"docker-from-docker": "latest",
		"git": "latest",
		"github-cli": "latest"
        }

This is a request to support a feature for bazel by adding a line like this:

		"bazel": "latest"

Doc on devcontainer.json: https://code.visualstudio.com/docs/remote/devcontainerjson-reference Place where you'd define a bazel script: https://github.com/microsoft/vscode-dev-containers/tree/main/script-library