Fix namespaces and paths. Add Exceptions and resources

composer.json

resources/schemas/schema

resources/schemas/schema-create

src/Exceptions/Exceptions/BodyValidationException.php

src/Http/Controllers/CollectionResourceController.php

src/Http/Controllers/DefaultResourceController.php

src/Http/Controllers/DocumentResourceController.php

src/Http/Controllers/JsonApiController.php

src/Http/Controllers/OneToOneResourceController.php

src/Serializers/BasicSerializer.php

src/Traits/CollectionResourceTrait.php

src/Traits/DocumentResourceTrait.php

src/Traits/StoreResourceTrait.php