Weight annotations to create a run order.

Using an enum, weight annotations so that they can be sorted into the
order in which they should be run. The weight is also setable as a
parameter of the annotation.

Bug: 201319781
Test: atest com.android.bedstead.nene.users.UsersTest
Change-Id: I9cbc313d575a5d0fc1c9e816e06668dd5a940fa2
59 files changed