Project specific search indices

index-name: Project ID

index config:

1. ES json mapping file
2. transformation for data to JSON (to be placed at .data)
3. transformation for metadata to JSON (to be placed at .metadata)

template:

<indexConfig>
  <!-- JSON mapping file for ES -->
  <mapping>textgrid:URI</mapping>
  <transformations>
    <data type="xslt">textgrid:URI</data>
    <metadata type="xquery">textgrid:URI</metadata>
  </transformations>
</indexConfig>