Scripts&DB/Feralas Convert npc_screecher_spirit to SAI

SAI by @Rushor and gossip by @malcrom

Closes #12630
Core/Misc: Fixed a possible crash in ProducerConsumerQueue::Cancel
Restore mmaps gen build

Closes #12631
Fix typo in 2014_07_13_01_world_misc.sql
DB/QUEST: Quest a Carver and a Croaker

Closes #3649
I must not forget to add broadcasttext IDS...
DB/QUEST: Healing the lake

Closes #12504
Closes #12526
DB/Waypoints: Pathing for Empoor and Formation for his bodyguard