title: How to add queries by search criteria?
body: <p>I am new to jhipster.
  Is there a guide of steps to follow to implement search criteria?
  I want to add to an entity, the possibility of filtering by any of its fields.
  I have enabled filtering, but can't find a mode to show up on the entity's CRUD page.
  I understand that I have to code in different places in the application ... but I did not find any examples or guides.
  In advance, thank you very much for giving me some help</p>