Add random regions generator.

[nymanjens]

Example output:

== The Triple Entente ==
  Regions for France:
    - N-France*
    - Norway
    - Bulgaria
    - Ireland
    - Egypt
  Regions for Russia:
    - Russia*
    - Schotland
    - Denmark
    - Serbia
    - Greece

== Central players ==
  Regions for Austro-Hungary:
    - Hungary*
    - Bosnia
    - N-Africa
    - Caucasus
    - Switserland
  Regions for Germany:
    - E-Germany*
    - Middle East
    - Szechoslovikia
    - W-Germany
    - S-France

(* strategic region)