Merge branch 'devel/tizen' into tizen

* devel/tizen: (21 commits)
  sensord: rv: fix invalid name of magnetic sensor type URI
  sensord: version up 4.0.0 for Tizen 4
  sensord: check validation of sensor URI to create a sensor provider
  sensord: add NULL check when callbacks is called
  sensord: change return type from bool to int for checking errors
  sensord: change unclear classes to inner class
  sensord: assign a category number to enum of commands
  sensord: rename URIs of sensor type and support get_sensor(uri) properly
  sensord: initialize class members of sensor_provider_handler
  sensord: add internal API to get URI of sensor
  sensord: notify that the sensor is registered or unregistered
  sensord: implement application sensor handler
  sensord: do not let the listener have sensor pointer directly
  sensord: implement URI-based and provider internal APIs
  sensord: detect that a sensor is added or removed in runtime (client-side)
  sensord: add sensor_provider for app-level sensor
  sensord: add command types/macros for sensor provider
  sensord: remove set/get API for the URI of sensor type
  sensord: add testcase for sensor-provider APIs
  sensord: add skeleton APIs for sensor provider
  ...

Change-Id: I25af65c083c7a9ee5edfba33d4c034afc417c4fe
Signed-off-by: kibak.yoon <kibak.yoon@samsung.com>