DIR_METADATA: Add V2 Test Plans.

Add the default set of test rules.

V2 test plans will be verified in staging before being enabled in prod.

See go/cros-cq-test-config for more details.

BUG=b:249150178
TEST=dirmd validate

Change-Id: I499cf26f42747ff0d9489c4479feeeb50cbdab7d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/libevdev/+/3926286
Tested-by: Navil Perez <navil@google.com>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Commit-Queue: Navil Perez <navil@google.com>