feature(nydusd): add nydusd support to introduse lazyload ability

Pulling image is the most time-consuming step in the container lifecycle. This PR
introduse nydus to kata container, it can lazily pull image when container start. So it
can speed up kata container create and start.

Fixes #2724

Signed-off-by: luodaowen.backend <luodaowen.backend@bytedance.com>

src/runtime/pkg/hypervisors/hypervisor_state.go

@@ -41,10 +41,10 @@ type HypervisorState struct {
 	// HotpluggedCPUs is the list of CPUs that were hot-added
 	HotpluggedVCPUs []CPUDevice
 
-	HotpluggedMemory int
-	VirtiofsdPid     int
-	Pid              int
-	PCIeRootPort     int
+	HotpluggedMemory  int
+	VirtiofsDaemonPid int
+	Pid               int
+	PCIeRootPort      int
 
 	HotplugVFIOOnRootBus bool
 }