Change Provision & FolderSync to be an EasOperation.

Provisioning should happen for any operation, so it needed
to get moved to the new infrastructure. FolderSync got moved
as the easiest way to test it.

The current provisioning flow kinda sucks but it's the same
as it was before and it works. Further cleanup can wait.

Change-Id: I52ee9eff36777919f517854514ee9f838dc9d433
8 files changed