Modularization.

--HG--
rename : i2c/src/main/java/org/podval/iot/i2c/TransactionBuffer.java => i2c/core/src/main/java/org/podval/iot/i2c/core/TransactionBuffer.java
rename : i2c/src/main/java/org/podval/iot/i2c/TransactionData.java => i2c/core/src/main/java/org/podval/iot/i2c/core/TransactionData.java
rename : i2c/src/main/scala/org/podval/iot/i2c/Address.scala => i2c/core/src/main/scala/org/podval/iot/core/Address.scala
rename : i2c/src/main/scala/org/podval/iot/i2c/Bus.scala => i2c/core/src/main/scala/org/podval/iot/core/Bus.scala
rename : i2c/src/main/scala/org/podval/iot/i2c/I2c.scala => i2c/core/src/main/scala/org/podval/iot/core/I2c.scala
rename : i2c/src/main/scala/org/podval/iot/i2c/I2cExeption.scala => i2c/core/src/main/scala/org/podval/iot/core/I2cExeption.scala
rename : i2c/src/main/scala/org/podval/iot/i2c/Register.scala => i2c/core/src/main/scala/org/podval/iot/core/Register.scala
rename : i2c/src/main/scala/org/podval/iot/i2c/Transaction.scala => i2c/core/src/main/scala/org/podval/iot/core/Transaction.scala
rename : i2c-device/pom.xml => i2c/device/pom.xml
rename : i2c-device/src/main/scala/org/podval/iot/i2c/device/Ads1x15.scala => i2c/device/src/main/scala/org/podval/iot/i2c/device/Ads1x15.scala
rename : i2c-device/src/main/scala/org/podval/iot/i2c/device/LedBackpack.scala => i2c/device/src/main/scala/org/podval/iot/i2c/device/LedBackpack.scala
rename : i2c-device/src/main/scala/org/podval/iot/i2c/device/Mpl115a2.scala => i2c/device/src/main/scala/org/podval/iot/i2c/device/Mpl115a2.scala
rename : i2c-device/src/main/scala/org/podval/iot/i2c/device/SevenSegment.scala => i2c/device/src/main/scala/org/podval/iot/i2c/device/SevenSegment.scala
rename : i2c-device/src/main/scala/org/podval/iot/i2c/device/Sht21.scala => i2c/device/src/main/scala/org/podval/iot/i2c/device/Sht21.scala
rename : i2c-tools/pom.xml => i2c/tools/pom.xml
rename : i2c-tools/src/main/scala/org/podval/iot/i2c/tools/Detect.scala => i2c/tools/src/main/scala/org/podval/iot/i2c/tools/Detect.scala
rename : raspberrypi/pom.xml => platform/raspberrypi/pom.xml
rename : raspberrypi/src/main/scala/org/podval/iot/raspberrypi/Bcm2835Gpio.scala => platform/raspberrypi/src/main/scala/org/podval/iot/platform/raspberrypi/Bcm2835Gpio.scala
rename : raspberrypi/src/main/scala/org/podval/iot/raspberrypi/RaspberryPi.scala => platform/raspberrypi/src/main/scala/org/podval/iot/platform/raspberrypi/RaspberryPi.scala