Slightly buffed Arabian Champions.

-Removed State Swordmen+Spearmen and Arab Trained Spears recruitment from all capital and town buildings to promote use and create need of military buildings instead

- Added normal Arabian Cavalry (The Vanilla one) to be recruited from Heavy stables level 2, which now matches the Light cavalry level 2 building which could recruit these units, which gave it an advantage before

-State Swordsmen+Spearmen units only available as garrisons from level 4 Capitals, level 4 garrison town, or the military building at the correct level, previously these units were garrisons at much lower building levels and on all towns

- Arabian Champions garrison removed from all buildings except military level 4 in order to make garrisons smaller, Previously, capitals and towns gave this unit as a garrison, now you will need the military building

-Arab trained spears removed from all garrisons except for military infantry building at the correct level, and Capitals at level 4 + garrison town level 4, before all capitals and towns gave this unit as a garrison and at much lower levels

fixed bug causing naval admirals to be unavailable for recruitment