More schema definition fun.

[adam-vessey]

GitHub Issue: Islandora/documentation#2164

• Other Relevant Links (Google Groups discussion, related pull requests,
  Release pull requests, etc.)

What does this Pull Request do?

Fleshes out config schema.

What's new?

A number of new config schemas being defined. Later exports may end up changing the types of values stored in exported YAML; for example: If something is now defined as a boolean, it should now be exported as a true or false whereas before it would've likely been the integers 1 or 0... shouldn't really have any effect, just might cause a bit of noise in diffs as it happens.

• Does this change add any new dependencies? No.
• Does this change require any other modifications to be made to the repository
  (i.e. Regeneration activity, etc.)? No.
• Could this change impact execution of existing code? Unlikely.

How should this be tested?

1. Install and enable the config_inspector module

2. Either:

   1. Run:

      drush config:inspect --only-error --detail
      

      or:
   2. Looks at the reports at /admin/reports/config-inspector

   to note the number of config errors present from the plugins defined in Islandora.

3. Grab the code

4. Clear cache

5. Re-run/Look at the config_inspector output, and see that the number of errors should be reduced.

Documentation Status

• Does this change existing behaviour that's currently documented?
• Does this change require new pages or sections of documentation?
• Who does this need to be documented for?
• Associated documentation pull request(s): ___ or documentation issue ___

Additional Notes:

Any additional information that you think would be helpful when reviewing this
PR.

Interested parties

Tag (@ mention) interested parties or, if unsure, @Islandora/8-x-committers

[whikloj]

Removed a bunch of missing schema errors 👍