Minor refactoring: Using updated variance fractal logic from United Nations Earth Pack for radial (or Azimuth) maps.

More water resources: same as Island Plates and Archipelago.

Radial variance fractal 2.0: larger and more realistic Arctic ice shelf.
Major improvement to terrascaping. Also aesthetic.

Using variance factal instead of RND for ice shelf generation and terrain banding.
Minor impact. Aesthetic.

1. GS Climate System support (notably river flooding).
2. Update compatibility for R&F and Standard Rules.

1. Support R&F.
2. No reefs.
3. Bugfix: random World Age.

Hooked up advanced map options for World Age and Rainfall.

Very trivial adjustment to landstrip data for Greenland to better suit hex grid. Cosmetic.

Using defaults from Fractal map instead to aid with civ start location assignment.

1. Consolidation/tidy-up of terrain gen. logic for more tundra forest.
2. Bugfix for Firaxis API Map.GetPlotDistance()