Added CoreAccessControlManager and derivative AdminUIAccessControlManage...

...r for more granular control and logging of permissions checks

For the purpose of section 3 of the Corporate Contributor License Agreement (“Section 3”), titled “Grant of Patent License,” the “Work” is git commit dd121b5148be078b70d0873ce8320a5343baccc1, the combination of the Contribution with the Work is git commit 5e0ab14bcc8ddf92c8775099caab8a97ab7eca21 ("Combination"), and the Contribution is therefore the difference between git commit dd121b5148be078b70d0873ce8320a5343baccc1 and git commit 5e0ab14bcc8ddf92c8775099caab8a97ab7eca21.  Pursuant and subject to the limitations of Section 3, Yahoo grants a patent license that applies to any current or future patent claims licensable by Yahoo that would otherwise be necessarily infringed by the Combination and/or the Contribution.