New Roman Civil Wars Narrative Campaign, other various fixes

Narrative Campaigns

• Added a new Roman Civil Wars and Revolts narrative campaign
• Split Map and Narrative campaign sections in Campaigns UI
• Added stakes as new campaign battle only terrain type, currently only on one RCW campaign battle

Deployment

• Improvements to Roman vs Hellenistic style deployments in campaign battles
• Added some custom deployment position changes for narrative campaign battles for Pharsalus

Bugs

• Improvements to issues with allied routing chain routs

Units

• Added undisciplined heavy infantry shock troops type for Roman Levy and Slaves with Captured Equipment
• Added veteran auxiliary spears unit (for Pharsalus)

Map Campaigns

• Added elephants prioritization rule for map campaigns

UI

• Battle UI shows allied faction icon and gives faction name tooltip on hover
• Minor fixes to tooltip displays for shooting