Add new routing API set

Add new routing API set

Functions are added as below
 : sound_manager_set_stream_preemptive_device()
 : sound_manager_get_stream_preemptive_device()

This function is to set a device id to streams made by the specific stream type.
Note that it'll affect all the streams belong to the stream type regardless of
process, it should be used carefully.

[Version] 0.6.3
[Issue Type] New feature

Change-Id: I35d902f77d4adc77490b9eacee505a1a1332f882
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>
(cherry picked from commit 40ddaaf16b5536ba2e804e33a8974ecc9414b39f)