HughV2: add drop down in controller to choose server #61

Job	Run time
build-demos (debug, compartmentalisation)	54s
build-demos (release, compartmentalisation)	50s
build-demos (debug, HughV2)	1m 19s
build-demos (debug, HughV1)	1m 16s
build-demos (release, configuration_broker_sonata)	1m 14s
build-demos (debug, configuration_broker_sonata)	1m 17s
build-demos (release, HughV1)	1m 15s
build-demos (debug, configuration_broker_ibex)	1m 46s
build-demos (release, configuration_broker_ibex)	1m 21s
build-demos (release, HughV2)	1m 4s
	12m 16s

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