I think we should move boost resolution to `SolrPersistentProperty` and its `SolrPersistentEntity` so that we can simply ask for the value

````java
if(persistentProperty.isBoosted()) {
  field.setBoost(persistentProperty.getBoost());
}
//...
if(entity.isBoosted()) {
  target.setDocumentBoost(entity.getBoost());
}
````