Create a script that alters each object to reassign owner role

[latin-panda]

The scripts don't reassign owner to full_access, that work needs to done manually most of the time.

However this repo is designed to support all CHT deployments, even self hosted. So we should not hardcode Medic-specific roles, but we can include that as a separate script.

1. Create a new script that alters the ownership of each object so it can be run when necessary (on demand):
   ALTER [OBJECT_TYPE] [OBJECT_NAME] OWNER TO full_access;
2. It would be nice to add some comments about how to use it, the reason of this script and what the role is about, so other projects have better understanding of this script.