Adjust random movement wait time and implement variable wait times
DB/Quest: The Root of all Evil

By @KIllyana, closes  #13308
Theres a slight issue where until npc is agrod will continuously spam Aura of Rot, due to evade mechanics and the event to cast this been action 25 reset ie gets stuck in a loop.
Core/SAI: changed multiple validation checks
Core:/SAI: Added better error log output in 0a897616dae34a26af4be516f25cc3c916905340
DB/Misc: Convert Schematic: Field Repair Bot 74A to db

By Killyana, closes  #13314
Merge pull request #13307 from beach-creature/master

Adjust random movement wait time and implement variable wait times
DB/SAI: Make several credit spell casts working (broken due to wrong target)
Add new line at end of file.
Scripts/GO: Remove go_field_repair_bot_74A

Replaced by SAI in c05a4189e29f52e648103f07859f8b3bcf8e
DB/Creature: Brazie Gatz

By Foldy, updates #13237
DB/Quest: A Visit to the Doctor

Closes #9986
DB/Text: Added creature texts to Karazhan NPCs
DB/Creature: Fix Brazie Gatz

By Exodius, closes #13237
Rename SQL files. It's not November, yet.
DB/Spell: Delete no longer needed hack

By unholychick
DB/Spell: Do not let Ebon Plague stack from different casters

Closes #12314
Updates #1818
By unholychick
Update README.md
Core/Misc: Fix current player state when logging out

Sit should only be apply'd when player is standing.
For example when sitting on a chair when logging out, player should stay on the chair until fully logged out and not sit on the floor.
DB/SAI: Prevent endless loops with linked events
Revert bfc6044