Add disable-networking and clear-config command line opts #2904

Job	Run time
photonclient-build	57s
photonclient-check-lint	37s
photon-build-all	4m 32s
Build Examples	3m 54s
Photonlib - Build Docker - Athena	11m 52s
Photonlib - Build Docker - Raspbian	12m 2s
Photonlib - Build Docker - Aarch64	9m 44s
Photonlib - Build Host - Win64	11m 58s
Photonlib - Build Host - Linux	5m 13s
wpiformat	18s
photonserver-build-offline-docs	1m 15s
photonserver-check-lint	51s
Build fat JAR - Win64	2m 42s
Build fat JAR - macOS	3m 5s
Build fat JAR - Linux	1m 34s
Build fat JAR - macOSArm	1m 58s
Build fat JAR - LinuxArm32	2m 8s
Build fat JAR - LinuxArm64	2m 43s
Build image - ${{ matrix.image_url }}	0s
photon-release	0s
	1h 17m 23s

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