New ferry connections within the ProMods 2.20 map

Old ferry connection:
- Roscoff - Ventspils
- Gdynia - Torshavn
- Calais - Kirkenes
- Thurso - Kirkenes
- Felixstow - Kardla (Hiiu maakond)
- Kirkenes - Seyðisfjörður
- Vaasa - Hull
- ?winouj?cie - Seyðisfjörður
- Calais - Seyðisfjörður

Added new ferries for ProMods 2.20:
- Belfast (Ireland) - Gdynia
- Belfast - Tallinn
- Rosslare (Ireland) - Kirkenes
- Rosslare - Rostock