CMSettings Migration Test

The tests host library contains a simple interface which calls down to a client interface on the device to take a snapshot of the current settings, forces an update with the current build defined in params, then verifies the settings post migration.

To run the test (on a live device):

--settings <example settings> --bootimg <boot.img> --systemimg <system.img> ```

To generate example settings to be written against 12.1 device during migration:

```java -cp /Volumes/CM/CM13/out/host/<platform>/framework/migration-interface.jar GenerateExampleSettings <output file path> ```