* Replaced hardcoded gender codes in source
Introduced a new constant for the account based gender and replaced all hardcoded gender references to code 99 with it.
* Replaced hardcoded gender codes in npcs
Exported the gender constants into the script engine and replaced all usages with references to the constants instead of expecting a value behind them.
* Corrected a typo
Thanks to Machiezmo from Discord.
* Fixed an inverted gender logic
Thanks to @secretdataz
Uses official script structure, with iRO dialogue taken from M45T3Ryu/KO-Proyect@d78f847.
Added Kagerou/Oboro support to other Ninja-related files.
Signed-off-by: Euphy <euphy.raliel@rathena.org>