Move Activity proto from activitymanagerservice.proto to windowmanagerservice.proto

All activity related code is under the wm package,we should move all activity
related proto from activitymanagerservice.proto to windowmanagerservice.proto.

This CL consolidate ActivityRecordProto,AppWindowTokenProto and move to
windowmanagerservice.proto. For TaskRecordProto/TaskProto related will
handle in next step.

Bug: 143460940
Test: atest CtsWindowManagerDeviceTestCases
      atest FlickerTests

Change-Id: Icade24069677c1f1a9852dab69da7f1d94340709