Added support for ADS1015 (12-bit Analog-to-Digital) chip.
PCA9685 PWM Controller contributed by Christian Wehrli
Merge pull request #48 from riftware/develop

merged pcf8574 LCD implementation
Servo component & PCA9685GpioServo impl contributed by Christian Wehrli

added unit tests for servo
removed <CR> characters from build file in examples
modified build shell script in examples to allow execution from external path
Gyroscope class to core and initial implmentations of ADXL345, BMP085 and HMC5883L
Added Servo abstraction
Fixed RPIServoBlasterDriver
Fixed RPIServoBlasterDriver
Merge branch 'Pi4JUpstream/develop'