New APIs are added

New APIs are added

New enum :
recorder_device_state_e
New function :
recorder_get_device_state
recorder_add_device_state_changed_cb
recorder_remove_device_state_changed_cb

[Version] 0.2.38
[Profile] Common
[Issue Type] New function
[Dependency module] N/A
[Dependency commit] N/A
[Test] [M(T) - Boot=(OK), sdb=(OK), Home=(OK), Touch=(OK), Version=tizen-mobile_20160929.1]

Change-Id: I250260e1259ac54c0366908e14754edb75c992f2
Signed-off-by: Jeongmo Yang <jm80.yang@samsung.com>