Merge pull request #11 from arfoll/master

libwyliodrin: rename maa to mraa and depend on version 0.4.0
fix problem with cmake version and String REPLACE
SPI, Adafruit GFX, Adafruit ST7735
Merge branch 'master' of https://github.com/Wyliodrin/libwyliodrin
avoid lib conflict if RaspberryPi is On
Update required cmake version
raspberrypi i2c
Merge branch 'master' of https://github.com/Wyliodrin/libwyliodrin
PCD8544
PCD8544
raspberry pi without i2c
enable Pixy explorer
enable Pixy explorer
spi & i2c partial fix
Merge branch 'master' of https://github.com/Wyliodrin/libwyliodrin
SPI & i2c fix
fixes
spi & i2c fix
servo
Servo: static pinData array