294 define codelist in qubeconfig

[GDonRanasinghe]

This PR involves extending the qube config so that the users can define code lists within the qube config file.

The following tasks are ready for review:

1. New json representation of a codelist (see schema/codelist-config/v1_0/codelistconfig-example.jsonc file).
2. New schema.json for the creating and validating a codelist (see schema/codelist-config/v1_0/schema.json file).
3. Alter the code which parses the JSON so that it extracts the relevant information and puts it into the code list class.
4. Implementations for handling versioning for cube config so that v1.0 and v1.1 of cube config works.
5. Ability to define inline code lists.
6. Unit and behave tests.

Satisfies #294

[canwaf]

There's a bit more work which needs doing to this to get it ready for coding; think of how we would follow a predictable "configuration by convention" approach as we have done with cube configs.

[robons]

Looks pretty close to being done.

If you could change the schema a little or use enums in the sort object as well as changing the underlying behaviour of the sort functionality then that would make it great.

[GDonRanasinghe]

Looks pretty close to being done.

If you could change the schema a little or use enums in the sort object as well as changing the underlying behaviour of the sort functionality then that would make it great.

@robons Sure, I will do these updates.

[robons]

Looks pretty good. So long as you add some tests for the sort_order logic, you're good to go.

[GDonRanasinghe]

Looks pretty close to being done.

If you could change the schema a little or use enums in the sort object as well as changing the underlying behaviour of the sort functionality then that would make it great.

@robons This is also done now.