[dtdesign]

This PR adds a non-interactive CLI file to sync all or some PIPs of a devtools project.

Usage: php devtools.php <command> [options]

Commands:
  projects
      List the projects as their ID, name and path.

  targets --project=<project> [--pip=<pip>]
      List the targets of all PIPs or of a single PIP.

  sync --project=<project> --all
      Sync all PIPs in the order of their dependencies, followed by
      the package version. Unsafe PIPs are never synced.

  sync --project=<project> --pip=<pip> [--target=<target>] [--allow-unsafe]
      Sync all targets or a single target of a PIP. Unsafe PIPs
      require --allow-unsafe.

<project> is the ID, the path or the name of the project, or the
identifier of its package. A path must contain a '/' or be '.'.

Exit codes: 0 on success, 1 on failure, 2 on invalid arguments.