Make the FileManagerService use the normalized mime type when matching for FileImporters

Currently it matches only the input Blob mime type: this means we must register in the File Importer all the mime types of a normalised mime type to make it works => duplicated information.

Matching also the normalised mime type will allow us to:

• Register all the mime types that are related to photoshop files

  <mimetype normalized="application/photoshop" binary="false" iconPath="image.gif">
   <mimetypes>
     <mimetype>application/photoshop</mimetype>
     <mimetype>application/x-photoshop</mimetype>
     <mimetype>image/photoshop</mimetype>
     <mimetype>image/x-photoshop</mimetype>
     <mimetype>image/psd</mimetype>
     <mimetype>image/x-psd</mimetype>
     <mimetype>image/vnd.adobe.photoshop</mimetype>
     <mimetype>application/psd</mimetype>
     <mimetype>zz-application</mimetype>
     <mimetype>zz-winassoc-psd</mimetype>
   </mimetypes>
   <extensions>
     <extension>psd</extension>
   </extensions>
  </mimetype>
  

• Add only the application/photoshop mime type in the ImagePlugin:

  <plugin name="Imageplugin"
    class="org.nuxeo.ecm.platform.picture.extension.ImagePlugin"
    order="10">
    ...
    <filter>application/photoshop</filter>
    ...
  </plugin>
  

This way, all photoshop files, regardless of their specific mime types, will be imported through the ImagePlugin if their mime types are in the first contribution.