Split Configuration into several classes

Each feature should handle its own configuration.

src/logid/CMakeLists.txt

@@ -14,6 +14,7 @@ add_executable(logid
         DeviceManager.cpp
         Device.cpp
         Receiver.cpp
+        Configuration.cpp
         backend/Error.cpp
         backend/raw/DeviceMonitor.cpp
         backend/raw/RawDevice.cpp