Add CLI argument to specify the data directory

Added CLI arg to specify the data directory. Tests for save/load, downloading mods, creating maps, show success

- Desktop: Allow specifying data directory (for "local" files, in GDX terms) separate from installed files directory (What GDX terms "internal").

fixed broken build

Added helper function MapUnit.hasMovement()

New unit triggers to gain/lose movement points

AI citizen focus change  - By EmperorPinguin

Correct spelling of 'Svannah' to 'Savannah' across project.  - By aaronjfeingold

Fix AUR deploy step  - By Thyrum