This commit introduces changes to enable testing kata-agent's container
APIs of CreateContainer/StartContainer/RemoveContainer. The changeset
include:
- using confidential-containers image-rs crate to pull/unpack/mount a
container image. Currently supports only un-authenicated registry pull
- re-factor api handlers to reduce cmdline complexity and handle
request generation logic in tool
- introduce an OCI config template for container creation
- add test case
Fixes#9707
Signed-off-by: Sumedh Alok Sharma <sumsharma@microsoft.com>
