[mt92] Split AchievementMgr to guild and player ones.

Signed-off-by: Yaki Khadafi <elsoldollo@gmail.com>
[mt93] Implement SPELL_AURA_MOD_MONEY_TO_GUILD_BANK

Signed-off-by: Yaki Khadafi <elsoldollo@gmail.com>
[mt94] Implement SPELL_AURA_MOD_IGNORE_ARMOR_PCT and SPELLMOD_IGNORE_ARMOR

Signed-off-by: Yaki Khadafi <elsoldollo@gmail.com>