Enhancement

All of our jsonschemas are hidden down under cloudinit/config/schemas/, which doesn't make sense:

a) these files contain data not Python code b) some of these files are not specific to configuration modules c) the __init__.py was never required

These file should exist in a directory under the top directory, probably named something like schema (alternatively jsonschema or maybe something more generic like data).

Expected changes:

• code in cloudinit/, specifically schema.py
• test/unittest/
• setup.py
• possibly distro packaging too (presumably avoidable with setup.py finesse)