removed conflicting files that disappeared roman, arverni, and punic units.

Condensed all new unit files into 'bs2' files for easier use by other modders

fixed historical description and units bug for Empire Divided Black Sands 2 auxiliary units.
Auxiliary African Skirmish Cavalry in Egypt and Libya
Auxiliary African Large Shield Warriors in North Africa
Auxiliary Blemmye, Nubian, and Axumite units in Aethiopia

adjustments to cavalry units in Empire Divided campaign

adjusted cavalry recruitment in Grand Campaign and Imperator Augustus to reduce gaps in building levels
adjusted cavalry unit mounts to reflect placement in stable levels

African Levy Spearmen now recruited at barracks for all African/Aethiopian/Numidian units across campaigns

African Large Shield Warriors recruited at barracks for Garamantia and Nasamones now

Auxiliary African Skirmish Cavalry now recruited in Libya and Egypt
Auxiliary African Chariot Raiders and Auxiliary African Large Shield Warriors recruited in Phazania, Numidia, and Mauretania

changed Auxiliary African Chariots, Auxiliary African Skirmish Cav, and Auxiliary Large Shield Warrior area of recruitment to North Africa.

made Auxiliary African Elephants recruitable in by all factions

added historical descriptions for all Black Sands units.
changed Axumite Sarawit uniform to a more eastern armour from Greek armour.
corrected bug where Auxiliary African units could not be recruited in Phazania and Libya.

new hair and unit card icon for Medjay Spearmen

Made Empire Divided versions of all auxiliary Black Sands units, which are now recruited at Level 1 auxiliary buildings (for Roman factions), level two infantry buildings (for Eastern and Armenian factions), and level four province capital buildings (for Barbarian factions).

Adjusted name of new Nubian spear unit to Medjay Spearmen.