apimachinery: fork apimachinery to handle time jsonpb serialization

[nicks]

Hello @milas,

Please review the following commits I made in branch nicks/serialization:

0a6c6dc (2021-05-05 16:31:48 -0400)
apimachinery: fork apimachinery to handle time jsonpb serialization

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[milas]

Is the core issue here that we (or K8s?) are still using github.com/golang/protobuf ("v1") instead of google.golang.org/protobuf ("v2") since the latter replaces jsonpb with protojson?

[nicks]

ya, and we also use grpc-gateway to handle the protobuf json serialization. it's a kaleidoscope of incompatibilities!