camera: support multiple cameras within one instance #4177

Job	Run time
alpine 3.19.0 (musl)	1m 34s
Ubuntu/Debian packaging (Ubuntu 20.04)	2m 1s
coverage (ubuntu-20.04)	2m 42s
ubuntu-20.04 (package, non-mavsdk_server)	3m 8s
ubuntu-22.04 (package, non-mavsdk_server)	2m 52s
android-arm	2m 16s
ubuntu-24.04 (package, non-mavsdk_server)	3m 8s
linux-armv6	1s
android-arm64	2m 26s
linux-armv7	1s
android-x86	2m 18s
linux-armv6-musl	1m 33s
linux-arm64	1m 40s
android-x86_64	2m 33s
linux-armv7l-musl	1m 17s
ios	1m 20s
linux-arm64-lts	1m 41s
linux-arm64-musl	1m 18s
ios_simulator_x64	1m 52s
ios_simulator_arm64	1m 37s
macOS x64	13m 12s
ubuntu-20.04 (mavsdk, hunter)	1m 36s
ubuntu-20.04 (non-mavsdk_server, non-superbuild)	2m 16s
macOS arm64	12m 55s
macOS framework x64	13m 9s
ubuntu-24.04 (style and proto check)	27m 31s
ubuntu-20.04 (mavsdk_server, superbuild)	25m 47s
macOS framework arm64	1s
Windows	1h 16m 56s
ubuntu-22.04 (mavsdk_server, superbuild)	27m 1s
ubuntu-24.04 (mavsdk_server, superbuild)	25m 18s
ubuntu-24.04 (mavsdk_server, superbuild)	25m 16s
ubuntu-24.04 (mavsdk_server, superbuild)	25m 19s
iOS XCFramework	0s
	5h 13m 35s

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