fix leak in LS::Service move assignment

:Release Notes:
Removed some resources leak

:Detailed Notes:
- added integration test for LS::Service
- fixed leak in LS::Service move assignment
- fixed run_with_hub
- added tests for BHV-4680 and BHV-4681

:Testing Performed:
unit and integration tests on desktop

:QA Notes:

:Issues Addressed:
[BHV-1589] Implement category registration with its description
[BHV-4680] LS2: doesn't send error responses after static service register/unregister
[BHV-4681] LS2: LSCallSetTimeout logic doesn't notify client about canceling call due to timeout

Open-webOS-DCO-1.0-Signed-off-by: Nikolay Orliuk <nikolay.orliuk@lge.com>

Change-Id: I55f5dc5acd0a956c499f439d73b5109a0443aec2
Reviewed-on: https://g2g.palm.com/5286
Reviewed-by: DCO Verification
Reviewed-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Tested-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>