Add Factions and include in map

[derikb]

• [x] Faction model/service/display.
• [x] save relationships to npc/pcs in faction model (unlike other relationships)
• [x] Use the old school reaction roll at the options.
• [x] Some kind of color coding for each faction (color is a faction setting?)
  • Maybe a colored icon.
  • Then add a key.