Use test matrix to build examples #227

Job	Run time
examples (uno, custom_hal)	25s
test	1m 21s
lint	7s
examples (uno, morse)	18s
examples (uno, candle)	21s
examples (uno, multiled)	18s
examples (uno, user_func)	22s
examples (uno, hello)	20s
examples (uno, breathe)	20s
examples (uno, simple_on)	20s
examples (uno, fade_on)	19s
examples (uno, sequence)	23s
examples (esp01, custom_hal)	34s
examples (esp01, morse)	35s
examples (esp01, candle)	35s
examples (esp01, multiled)	40s
examples (esp01, user_func)	35s
examples (esp01, hello)	35s
examples (esp01, breathe)	35s
examples (esp01, simple_on)	34s
examples (esp01, fade_on)	36s
examples (esp01, sequence)	41s
examples (nano33ble, custom_hal)	33s
examples (nano33ble, morse)	38s
examples (nano33ble, candle)	33s
examples (nano33ble, multiled)	33s
examples (nano33ble, user_func)	33s
examples (nano33ble, hello)	38s
examples (nano33ble, breathe)	32s
examples (nano33ble, simple_on)	34s
examples (nano33ble, fade_on)	31s
examples (nano33ble, sequence)	34s
examples (esp32dev, custom_hal)	40s
examples (esp32dev, morse)	42s
examples (esp32dev, candle)	41s
examples (esp32dev, multiled)	41s
examples (esp32dev, user_func)	48s
examples (esp32dev, hello)	43s
examples (esp32dev, breathe)	45s
examples (esp32dev, simple_on)	42s
examples (esp32dev, fade_on)	42s
examples (esp32dev, sequence)	42s
examples (nucleo_f401re, multiled_mbed, --project-option="framework=mbed", cpp)	2m 40s
	26m 19s

Provide feedback