ServiceHandler Update

ServiceHandler Update

this commit includes :
- Debugging error process failure due to function writeOrDelete.
- solving the following javadoc warning
'IllegalCatch : Catching "Exception" is not allowed'.
- Modifiy all RPCs to wait for stubpce and stubrenderer
notification success or failure before launching other actions.
- Correct major errors on RPC serviceReconfigure.
- Correct all CDP errors from serviceHandler and Stubpce maven project.
- Modfify servicehandler.yang to only have modified notification with
and RPC use rpc-response-status-ex from
org-openroadm-common-service-path-types. ServiceHandler will now get
his RPCs from org-openroadm-service.yang.
- useless blank removed
- correct javadoc warnnings
- move stubpce and stubrenderer to tests folder
- add dependency 'Version update to 1.6 of the service-path model'.

Change-Id: Icb580c1446f55734cbf56139386d9bd9c8a29ae3
Signed-off-by: Martial COULIBALY <martial.coulibaly@gfi.fr>
Signed-off-by: Olivier RENAIS <olivier.renais@orange.com>