adds the VM Sandbox spec to be used for V2 shims

Signed-off-by: Harsh Rawat <harshrawat@microsoft.com>

Author: rawahars

sandbox-spec-v2/vm/spec.go

@@ -0,0 +1,22 @@
+package vm
+
+import (
+	"github.com/containerd/typeurl/v2"
+	specs "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+func init() {
+	typeurl.Register(&Spec{}, "sandbox-spec-v2/vm/Spec", "Spec")
+}
+
+// Spec holds the subset of PodSandboxConfig that the VM sandbox
+// implementation needs.
+type Spec struct {
+	// Unstructured key-value map that may be set by the kubelet to store and
+	// retrieve arbitrary metadata.
+	Annotations map[string]string `json:"annotations,omitempty"`
+
+	// Devices holds Windows devices that should be assigned to the sandbox VM
+	// at boot time.
+	Devices []specs.WindowsDevice `json:"devices,omitempty"`
+}