This prepares us to return a DTO rather than BookshelfModel to the serialiser
layer. When passing a BookshelfModel, the serialisation layer uses the model to
read from when building computed properties. By stripping values out in the
toJSON method it means that the DTO will be missing them and the computed
properties won't be able to be calculated. Instead we return ALL values to the
serialisation layer, and then strip out the ones that weren't requested in the
"clean" step.
This also inadvertently fixes the issue with `reading_time` requiring the
`html` field to be requested, we can now request just `reading_time`, as well
as have it included by default.
As discussed with the product team we want to enforce kebab-case file names for
all files, with the exception of files which export a single class, in which
case they should be PascalCase and reflect the class which they export.
This will help find classes faster, and should push better naming for them too.
Some files and packages have been excluded from this linting, specifically when
a library or framework depends on the naming of a file for the functionality
e.g. Ember, knex-migrator, adapter-manager
