Planner: New Microsoft Planner app for Microsoft Teams in GCC High

After further review, we will not be rolling this out to DoD. We apologize for any inconvenience. The new Microsoft Planner app in Teams is a single, unified work management experience. It brings together the simplicity of To Do, the collaboration of Planner into a single and simple solution, that offers individual task management, collaborative work management as well as enterprise work management.