v1beta1.controlplane.antrea.tanzu.vmware.com used v1beta2 types and field selectors were missing

[tnqn]

Describe the bug

When debugging #2303, I found that listing the networkpolicy.v1beta1.controlplane.antrea.tanzu.vmware.com API didn't get error when listing networkpolicy.v1beta1.networking.antrea.tanzu.vmware.com got "MarshalJSON error", while they were supposed to use same types and get same results.

It turned out thatv1beta1.controlplane.antrea.tanzu.vmware.com was actually using v1beta2 types by mistake. It was introduced when renaming the API group to antrea.io:

antrea/pkg/legacyapis/controlplane/v1beta1/register.go

Lines 47 to 55 in ef14ad1

	&v1beta2.AppliedToGroup{},
	&v1beta2.AppliedToGroupPatch{},
	&v1beta2.AppliedToGroupList{},
	&v1beta2.AddressGroup{},
	&v1beta2.AddressGroupPatch{},
	&v1beta2.AddressGroupList{},
	&v1beta2.NetworkPolicy{},
	&v1beta2.NetworkPolicyList{},
	&v1beta2.NodeStatsSummary{},

This would cause the consumer of the legacy controlplane v1beta1 API got unexpected response.

Beside, the field selectors of v1beta1.controlplane.antrea.tanzu.vmware.com and v1beta1.networking.antrea.tanzu.vmware.com were not registered, which caused "nodeName" fieldSelector not working.

# kubectl get networkpolicy.v1beta1.networking.antrea.tanzu.vmware.com --field-selector "nodeName=abc"
Error from server (BadRequest): Unable to find "networking.antrea.tanzu.vmware.com/v1beta1, Resource=networkpolicies" that match label selector "", field selector "nodeName=abc": "nodeName" is not a known field selector: only "metadata.name", "metadata.namespace"
# kubectl get networkpolicy.v1beta1.controlplane.antrea.tanzu.vmware.com --field-selector "nodeName=abc"
Error from server (BadRequest): Unable to find "controlplane.antrea.tanzu.vmware.com/v1beta1, Resource=networkpolicies" that match label selector "", field selector "nodeName=abc": "nodeName" is not a known field selector: only "metadata.name", "metadata.namespace"

Versions:
Please provide the following information:

• Antrea version (Docker image tag). 1.0.0-1.1.0