Add upstart scripts for media and tempdb

:Release Notes:
Add mediadb and tempdb upstart scripts

:Detailed Notes:
Change configuration file installation path to /etc/palm/db8
Add upstart scripts for mediadb and tempdb

:Testing Performed:
Compiled and tested localy.

:QA Notes:

:Issues Addressed:
[ANG-298] Add conf files and upstart scripts for main/temp/mediadb

Open-webOS-DCO-1.0-Signed-off-by: Maksym Sditanov <maxim.sditanov@lge.com>

Change-Id: I9fc413d219f2eddbbb5785351ad4da6ea62e966c
Reviewed-on: https://g2g.palm.com/4433
Reviewed-by: DCO Verification
Reviewed-by: Oleksii Uratkin <oleksii.uratkin@lge.com>
Tested-by: Oleksii Uratkin <oleksii.uratkin@lge.com>