Implement tizen privilege for w3c API

Implement tizen privilege for w3c API

[Issue#] N/A
[Problem] N/A
[Cause] N/A
[Solution] Implement tizen privilege for W3C API.
If web application contains "http://tizen.org/privilege/geolocation"
with tizen:privilege tag, web application uses geolocation without
security warning popup. In this case, only local origin is allowed to use.

This commit implement read-only items in the exceptions setting menu.
In case of security origin exception data which is register by privilege,
items will be set to read-only items for preventing removed.

[SCMRequest] must be imported with wrt-commons
https://tizendev.org/gerrit/#/c/30851/

Change-Id: Idbc8f3ea742e06f84a36a79361e25ec1253b822a