GOATS-966 GOATS-967 GOATS-968: Implement serializers for brightness, elevation range, and exposure mode.#456

davner merged 3 commits intomaingemini-hlsw/goats:mainfrom

GOATS-966_GOATS-967_GOATS-968/serializersgemini-hlsw/goats:GOATS-966_GOATS-967_GOATS-968/serializersCopy head branch name to clipboard