Candig-schemas

This release introduces:

additional fields introduced from the PROFYLE schema.

This release introduces

- the ability to auto remove intermediate `proto` files
- include shorthand, definition and modifier as the Ontology attributes.
- add `terms_of_use` to the response object of dataset. It will be returned as `termsOfUse`
- add `gene` to `variantsRequest` in preparation for the new `variants/gene/search` endpoint

- clarify that the script only works when you run it under `/scripts`, any other ways won't work. The tests have yet to be updated since I couldn't get it to work yet; for now they'll keep the way they are.
- A workaround that attempts to write `version` in both dir was added.

This release introduces

- Upgraded codebase (3.6+)

This release introduces:

- Passed all of the unit tests
- Updated Readme
- Updated protocol version

This release introduces

- The change of namespace

Note:

- Due to the change of namespace, this particular version will not work with any current candig-server.

This is the v0.7.1 release of the candig-schemas, tagged from the develop branch.

This release includes:

- Fix failing tests
- Deleted several unused imports from the source code of proto

Note:
Normally, changes this small would not constitute a new release; in this case, since we are going to introduce the change of namespace in the next few PRs, this particular commit is tagged, in case the refactoring goes wrong.