GATT Server : Provide a response necessity

GATT Server : Provide a response necessity

[Model] COMMON
[BinType] AP
[Customer] OPEN

[Issue#] N/A
[Request] Internal
[Occurrence Version] N/A

[Problem] Applications couldn't know whether this write request require a
 response or not
[Cause & Measure] There was no information about a response necessity.
 And reply required dbus call is always used unnecessarily. This patch
 provides a reponse necessity to above layer and uses no reply dbus call
 for Write Without Response command.
[Checking Method] Add some writable characteristics to GATT Server ->
Send some Write Without Reponse or Write Reqest from a remote device

[Team] Basic connection
[Developer] Seungyoun Ju
[Solution company] Samsung
[Change Type] Specification change

Change-Id: I2da48f92537ac337940d9e763b4d866f2b963fef
Signed-off-by: DoHyun Pyun <dh79.pyun@samsung.com>