Changed hair and beard definitions, as well as some head types, for Legion characters to improve visual variety and consistency. Added <showInDebugSpawner>false</showInDebugSpawner> to all unique Legion PawnKindDefs to prevent them from appearing in the debug spawner.
Introduced detailed backstories for multiple unique Legion characters in CharacterBackstories_Legion.xml. Added corresponding character definitions for Dead Sea, Alexus, Canyon Runner, Gaius Magnus, Severus, Picus, Cursor Lucullus, Silus, Decanus Severus, Karl, Otho, and Antony in CharacterDefs_Legion.xml. Updated Unique_PawnKinds_Legion.xml to include new unique pawn kinds and required apparel for these characters, as well as helmet requirements for Legate, Vexillarius, and Centurion roles. Also made appearance and bio adjustments for existing Legion characters.
Moved unique Legion character backstories to a new CharacterBackstories_Legion.xml file and removed them from BackstoryDefs_Legion.xml. Added Unique_PawnKinds_Legion.xml to define unique pawn kinds for Caesar, Lanius, Lucius, Vulpes, and Aurelius, and updated CharacterDefs_Legion.xml and FCP_Legion.xml to use these new pawn kinds. Cleaned up PawnKinds.xml by removing unique Legion pawn kinds from the base file.