Split mission transfer into client and server #3493

Job	Run time
ubuntu-20.04 (non-mavsdk_server, non-superbuild)	8m 11s
ubuntu-20.04 (mavsdk, hunter)	4m 30s
alpine 3.16.0 (musl)	1h 20m 25s
coverage (ubuntu-20.04)	5m 31s
Ubuntu/Debian packaging (Ubuntu 20.04)	10m 41s
ubuntu-20.04 (package, non-mavsdk_server)	10m 24s
ubuntu-22.04 (package, non-mavsdk_server)	5m 17s
android-arm	7m 5s
linux-armv6	4m 56s
android-arm64	7m 14s
linux-armv6-musl	16m 20s
linux-armv7	7m 28s
android-x86	8m 11s
linux-armv7l-musl	18m 9s
ios	7m 3s
linux-arm64	5m 4s
linux-arm64-musl	16m 36s
ios_simulator	12m 48s
android-x86_64	7m 14s
macOS	17m 42s
ubuntu-22.04 (style and proto check)	2m 3s
macOS-framework	10m 49s
ubuntu-20.04 (mavsdk_server, superbuild)	14m 39s
ubuntu-22.04 (mavsdk_server, superbuild)	1h 6m 28s
Windows	19m 1s
iOS XCFramework	1m 33s
	6h 15m 22s

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