Improve performance of delete operation

[mlopezFC]

For what I see in this code, we're converting the dto to an entity just to delete the entity, maybe it would be a good idea to provide a deleteById method, or figure out another way of doing the deletion.

backend-core/backend-core-data-impl/src/main/java/com/flowingcode/backendcore/dao/jpa/ConversionJpaDaoSupport.java

Lines 85 to 89 in 6c23b71

	default void delete(S entity) {
	T persistentEntity = convertTo(entity);
	EntityManager em = getEntityManager();
	persistentEntity = em.getReference(getPersistentClass(), persistentEntity.getId());
	em.remove(persistentEntity);

[javier-godoy]

We would need a method to retrieve the persistent id (K) from the DTO S without first converting it to a persistent entity T.