Use protobufs for packed message data #258

Job	Run time
Build Offline Docs	1m 22s
PhotonClient Build	38s
Build Examples	1m 53s
Gradle Build	2m 35s
Photonlib - Build Docker - Athena	2m 5s
Photonlib - Build Docker - Raspbian	2m 10s
Photonlib - Build Host - Win64	4m 38s
Photonlib - Build Docker - Aarch64	2m 16s
Photonlib - Build Host - macOS	1m 51s
Photonlib - Build Host - Linux	2m 1s
Build fat JAR - ${{ matrix.artifact-name }}	0s
Build image - ${{ matrix.image_url }}	0s
release	0s
	21m 29s

Provide feedback