Add generic advertisement 'type' functions (#575) #169

Job	Run time
build_docs	9s
build_esp_pio (examples/NimBLE_Client)	1m 49s
build_arduino-esp32 (examples/NimBLE_Client, esp32)	1m 35s
build_esp_pio (examples/NimBLE_Server)	2m 6s
build_n-able-Arduino (examples/NimBLE_Client, Generic_nRF51822:chip=xxaa)	1m 1s
build_n-able-pio (examples/NimBLE_Client)	57s
build_arduino-esp32 (examples/NimBLE_Client, esp32c3)	1m 30s
build_n-able-Arduino (examples/NimBLE_Client, Generic_nRF52832)	58s
build_arduino-esp32 (examples/NimBLE_Client, esp32s3)	1m 27s
build_n-able-pio (examples/NimBLE_Server)	1m 4s
build_n-able-Arduino (examples/NimBLE_Client, Generic_nRF52833)	59s
build_arduino-esp32 (examples/NimBLE_Server, esp32)	1m 35s
build_n-able-Arduino (examples/NimBLE_Client, Generic_nRF52840)	59s
build_arduino-esp32 (examples/NimBLE_Server, esp32c3)	1m 25s
build_n-able-Arduino (examples/NimBLE_Server, Generic_nRF51822:chip=xxaa)	59s
build_arduino-esp32 (examples/NimBLE_Server, esp32s3)	1m 26s
build_n-able-Arduino (examples/NimBLE_Server, Generic_nRF52832)	1m 3s
build_n-able-Arduino (examples/NimBLE_Server, Generic_nRF52833)	59s
build_n-able-Arduino (examples/NimBLE_Server, Generic_nRF52840)	58s
	22m 59s

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