Updated KG/OB Spirit Charms to official behavior
-http://hercules.ws/board/tracker/issue-8170-oborokagerou-charm/
-http://hercules.ws/board/tracker/issue-8274-ninja-charms-not-giving-proper-bonuses/

Signed-off-by: malufett <malufett.eat.my.binaries@gmail.com>
Save char sex in db.
Add script function for change per character gender.

New script function: changecharsex