Add support for PlatformIO code generation #56

Job	Run time
build (examples/avr/analogDfRobot, megaatmega2560)	1m 9s
build (examples/avr/keyboardEthernetShield, megaatmega2560)	1m 14s
build (examples/avr/nokia5110, megaatmega2560)	1m 11s
build (examples/esp/esp32Amplifier, esp32dev)	1m 50s
build (examples/esp/esp32s2Saola, esp32dev)	2m 2s
build (examples/esp/esp32s3TftEncoder, esp32dev)	1m 52s
build (examples/esp/esp32SimHub, esp32dev)	1m 54s
build (examples/esp/esp8266WifiOled, esp01_1m)	1m 48s
build (examples/esp/espCapTouchTft, esp32dev, esp01_1m)	2m 45s
build (examples/esp/simpleU8g2, esp32dev, esp01_1m)	2m 57s
	18m 42s

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