Use protobufs for packed message data #308

Job	Run time
Build Offline Docs	1m 21s
PhotonClient Build	39s
Build Examples	4m 1s
Gradle Build	4m 2s
Photonlib - Build Docker - Athena	6m 42s
Photonlib - Build Host - Win64	4m 20s
Photonlib - Build Docker - Raspbian	7m 13s
Photonlib - Build Host - macOS	10m 14s
Photonlib - Build Docker - Aarch64	7m 29s
Photonlib - Build Host - Linux	4m 13s
Build fat JAR - Win64	3m 8s
Build fat JAR - macOS	3m 59s
Build fat JAR - Linux	1m 45s
Build fat JAR - macOSArm	3m 7s
Build fat JAR - LinuxArm32	2m 16s
Build fat JAR - LinuxArm64	1m 29s
Build image - ${{ matrix.image_url }}	0s
release	0s
	1h 5m 58s

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