Crimean Peninsula mission

Added a mission for Crimea to recover the Crimean peninsula, which
returns their capital to Crimea. Needed because Crimea do not start with
any territory on the peninsula in the bookmark.
Catepanate of Italy ambition choice

Added a choice of Greek or Italian ambitions for the Catepanate which
limits which nations they can form. It can also be used in the future
for missions and flavour events.
Created build (packaging) process
Updated the overview page

Added all tags to the overview page (Fractured Nations.html) including
sources for new tags, plus info on the new tags (except Germany, Eastern
Europe, Scandinavia and Rus).