* x to Many relationships are detected via a `Many` keyword in the relationship object class name
* reason: example: `belongsTo` was incorrectly recognized as `belongsToMany`
* adds `@property-read int|null $x2Many_relationship_method_name_count` model class docBlock comment
* when model makes use of `withCount` or `loadCount` there is a property on the resource `$instance->relationship_method_count` that states the count of related models
* can be `NULL` when `withCount` or `loadCount` aren't used
