Add Index Configuration

As a user, I'd like to configure the documents that can be indexed.

• Add a new module nuxeo-ai-similar-content in nuxeo-ai project
• This new module will contain a new Nuxeo Component with the following extension point and contribution:
  • Add an extension point to identify those documents:

    <extension target="xxx" point="configuration-query">
      <configuration query="SELECT * FROM Document WHERE ecm:mixinType = 'Picture' AND ecm:tag NOT IN ('not_duplicate')" override='true'">
    <xpath>file:content</xpath>
    </configuration>
    </extension>

• • Default configuration query is:

SELECT * FROM Document WHERE ecm:mixinType = 'Picture' AND ecm:tag NOT IN ('not_duplicate')