As a user of the industry core hub backend, I want to be able to add PCF entries, share my PCFs, see my PCFs, send my PDFs and be able to manage and request PCFs according to the CX-0136 standard and the PCF KIT.
<!-- Thanks for your contribution! Please fill out this template as good as possible. Please don't include any personal or sensitive data. --> ### Description As a user of the industry core hub backend, I want to be able to add pcf entries, share my pcfs, see my pcfs, send my pdfs and be able to manage and request pcfs according to the [CX-0136](https://catenax-ev.github.io/docs/standards/CX-0136-UseCasePCF) standard and the [PCF KIT](https://eclipse-tractusx.github.io/docs-kits/kits/product-carbon-footprint-exchange-kit/adoption-view)  For that I need a add-on which allows me to execute different operations: MEDIUM (PULL Mechanism): - (PROVIDER) Add a PCF entry to a existing instance/serialized digital twin with the necessary information described in the [PCF datamodel version 9.0.0](https://github.com/eclipse-tractusx/sldt-semantic-models/blob/main/io.catenax.pcf/9.0.0/gen/Pcf.json). Extendi