Core/Scripts: rename files, remove whitespace and some other small changes after recent pull requests
Core/Misc: Refactor scripts to fix static analysis warnings

First batch of fixes targeting 100 issues reported by Coverity
Scripts/Commands: Replace regex usage

Sorry for the shitty C code but std::regex is not supported by GCC 4.7 and 4.8
DB/Misc Greatmother Geyah

Now as have sniffed all the gossip menu ids for this moving script for Greatmother Geyah to db, and the current script started not working correctly sometime ago ie failing to display npc_text (only options)

* Adds all gossip options to db
* SAI to complete both quests from gossip
* Missing npc_texts
Remove CPP Script 

Remove Greatmother Geyah's CPP Script
Scripts/Commands: Fix up logic at group join command, so it doesn't return full group error when it actually isn't full
Merge pull request #13004 from Nyeriah/pr-cmd

Scripts/Commands: Fix up logic at group join command, so it doesn't retu...
Core/Spells: Added better log output for "npc_spellclick_spells"
Hopefully crash fixxed
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore