Fixes https://github.com/payloadcms/payload/issues/9606
With Postgres / SQLite, select fields (non `hasMany: true`) weren't
properly handled in the `traverseFields.ts` function for `select` query.
Adds `select` which is used to specify the field projection for local
and rest API calls. This is available as an optimization to reduce the
payload's of requests and make the database queries more efficient.
Includes:
- [x] generate types for the `select` property
- [x] infer the return type by `select` with 2 modes - include (`field:
true`) and exclude (`field: false`)
- [x] lots of integration tests, including deep fields / localization
etc
- [x] implement the property in db adapters
- [x] implement the property in the local api for most operations
- [x] implement the property in the rest api
- [x] docs
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Co-authored-by: Dan Ribbens <dan.ribbens@gmail.com>
