Extend eoxserver registrar STAC metadata filtering to allow regex match instead of direct match
Direct matching of product_type to stac item properties selecting product type into which to register on https://gitlab.eox.at/vs/core/-/blob/master/registrar/backend/eoxserver.py#L280 could be enhanced to allow regex string as input to simplify configs such as: https://gitlab.eox.at/esa/prism/vs/-/blob/v2.0/config/vhr15/vhr15_registrar-config.yml#L76-96