Added additional port entities to the map, to fillin empty entity groups present in the datasheets.

Numerous port location adjustments - fixed ports being located on land. Ajusted Minefield Start -Stop dates so that more appear as the war progresses. Some Index changes to avoid Datasheet parsing errors.

0.6 Major expansion to task events, includes german lossing/abandoning ports in 1944/45. as well as US/GB occupation in later years.

moved the start date of U-30 cus bugz

fix to no campaign missions in U-30, this is a temporary fix until actual missions are created