AP_GPS: support GNSS receiver resilience information over MAVLink #10

Job	Run time
build (stm32f7, chibios, 10)	2m 31s
build (stm32h7, chibios, 10)	2m 48s
build (fmuv2-plane, chibios, 10)	2m 24s
build (periph-build, chibios, 10)	1m 48s
build (iofirmware, chibios, 10)	2m 50s
build (CubeOrange-bootloader, chibios, 10)	1m 20s
build (fmuv3-bootloader, chibios, 10)	1m 10s
build (revo-bootloader, chibios, 10)	1m 27s
build (stm32h7-debug, chibios, 10)	2m 35s
build (fmuv3, chibios, 10)	3m 58s
build (revo-mini, chibios, 10)	3m 3s
build (MatekF405-Wing, chibios, 10)	3m 18s
build (CubeOrange-ODID, chibios, 10)	2m 50s
build (CubeRedPrimary-bootloader, chibios, 10)	1m 31s
build (configure-all, chibios, 10)	9m 52s
build (build-options-defaults-test, chibios, 10)	2m 35s
build (signing, chibios, 10)	2m 47s
build (CubeOrange-PPP, chibios, 10)	2m 40s
build (SOHW, chibios, 10)	2m 30s
build (Pixhawk6X-PPPGW, chibios, 10)	3m 23s
	57m 20s

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