[Feature Request] Link with Placeholder in assets/Custom fields

[mtettke123]

For having links to external documents, a.e. purchase orders in a DMS, it would be great if links could be added to assets/custom fields like:

https://paperless-url/documents?title_content={ORDER_NUMBER}

just like the support URL in manufacturers allows to include {LOCALE}, {SERIAL}, {MODEL_NUMBER}, {MODEL_NAME}.
Think like a prepared URL in an custom field, so that only this field has to be added to the asset model, no need to enter an URL to an individual asset.

Should be thought together with #15502.