Merge branch '25-there-is-a-wrong-greek-character-in-catalog_get_resourcespec_by_name_category-message-name' into 'develop'

Resolve "There is a wrong greek character in CATALOG_GET_RESOURCESPEC_BY_NAME_CATEGORY message name"

See merge request !13

Reverting default osom's db to in memory. All the deployment files (docker-compose, helm) by default switch to local db. Fix for #26

Resolve "Reduce H2 database size"

See merge request !14