This is a sub-issue of.
http://drupal.org/node/1905070. While there are little cleanups planned for the format overall, the current format is a result of months of back and forths, so it should be perfectly fine to apply it more widely to core.introduced some config schema coverage for views and extended it, but it is not complete. The changelog leads to (hopefully extensive) documentation on the format at
Figure out the missing pieces that are not yet covered. Write schema file sections for them. Clean up / fix any issues in current schema.
Create a configuration schema for missing view relationship.
Schema in place
Please refer core/modules/views/config/schema/views.relationship.schema.yml
Schema not yet in place
PASSED: [[SimpleTest]]: [MySQL] 58,580 pass(es). View