Adds support for Pointer Permissions

* WIP: Initial pointer permissions

* Process Pointer perms when no matching CLP are found

* Additional tests with read lockdown

* Create operation lockdown with pointer permissions,

on parse.com, when an class is locked down with write pointer perm, users can't create objects even if they set their own as the pointer permission key

* Adds test case for multiple write PointerPerms

* Adds validation for pointer permissions when setting

* Adds tests for validating pointer permissions column types

* Adds tests for complex ACL/CLP/PP hierarchy

* Restores power of the master

* Adds validation of borked fields

* Adds complex test for find

* Adds more variations around PointerPermissions tests

Author: flovilmart