(fix) : Fix various issues in eu-connector and related modules

1. Correct credential file name in eu-connector/data-discovery/internal/handlers/v1/euportal/credential.go to use '.euportalpass'.
2. Replace 'Host' with 'Hostname' in credential and soap.go files for accurate endpoint configuration.
3. Remove unnecessary XML encoding in euportal.go and fix URL building for update endpoint.
4. Update permitdb.go to include catalogue ID in permit request save and getAll query.
5. Ensure AccessPoints parameter is passed correctly in main.go for non-fairdatapoint usage.

These changes address file naming inconsistencies, endpoint configuration errors, data encoding issues, non saving of catalog_id permit requests, and parameter passing for AccessPoints.