[WIP] [3.3.5] Core/Scripts: move npc_kharan_mighthammer to DB

[ghost]

Changes proposed:

Move scripts npc_kharan_mighthammer and npc_lokhtos_darkbargainer from core to DB & SAI

• move hardcoded text from scripts to the gossip_menu_option table
• remove core script and add SAI actions to complete gossip actions
• add missing option texts for horde quest 4001 "What Is Going On?"
• separate quest 4001 and 4342 dialog into horde / alliance sections

Target branch(es): 3.3.5

Issues addressed: Updates aletson#2

Tests performed: (Does it build, tested in-game, etc)
It builds (of course) because the only changes in the .cpp file is script removal.
Most of the gossip is still not working because some unknown issues with conditions or gossip tables.
Only the Alliance quest 4342 [Kharan's Tale] is working, not the Horde quest 4001.

Known issues and TODO list:

• Fix dialogue for horde quest 4001 "What is going on (2)"

[ghost]

Sorry about the noise, I have restored my account and improved my account security now.

[ghost]

Messed up my branches. Will create a new PR when I have sorted out my stuff.