WiFi: add scan() #648

Job	Run time
Build and package cores	8m 51s
Split off zephyr_contrib	11s
Split off zephyr_unoq	6s
Split off zephyr	17s
Split off zephyr_main	15s
Test zephyr_main:nano33ble	2m 29s
Test zephyr_main:giga	2m 40s
Test zephyr_main:portentac33	2m 39s
Test zephyr_main:niclasense	2m 36s
Test zephyr_main:portentah7	2m 28s
Test zephyr:unoq	2m 29s
Test zephyr_contrib:ek_ra8d1	2m 23s
Test zephyr_contrib:frdm_rw612	2m 22s
Test zephyr_main:opta	2m 29s
Test zephyr_contrib:frdm_mcxn947	2m 26s
Collect logs	9s
verify-core	0s
Publish jsons	17s
Publish core	-1s
cleanup-artifacts	5s
	35m 11s

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