Ryan

@TianTianBigWang hello. this pr introduces the apis of DMI. please help to check it.

> need run `hack/update-codegen.sh` and `hack/generate-crds.sh` to update generated codes and crds i have make it in the latest commit

hello. the cloud app updates the device status to kube-apiserver and the module of device controller in cloudcore will watch the modification and send it to the edgecore through cloudhub....

> > hello. the cloud app updates the device status to kube-apiserver and the module of device controller in cloudcore will watch the modification and send it to the edgecore...

hello. do you create the CRD of DeviceModel first? please use `kubectl get crd |grep devicemodels` to check it.

@fisherxu please help to review this pr. thanks.

@fisherxu please help to review this pr. thanks.

@fisherxu please help to review this pr. thanks.

hello. please feel free to submit a pr to fix this bug. thanks :)

@fisherxu please help to review this pr. thanks.