GOATS-961 GOATS-983: Add clone target and observation serializers.#465

davner merged 2 commits intomaingemini-hlsw/goats:mainfrom

GOATS-961_GOATS-983/clone-target-observation-serializersgemini-hlsw/goats:GOATS-961_GOATS-983/clone-target-observation-serializersCopy head branch name to clipboard