Modernized "data/" directory structure

[dot-snack]

Changes Proposed:

• Modernize Directory structure to enable automatic import of SQL with autoupdate
• Remove obsolete files
• Add current module template files

Issues Addressed:

• Current module requires manual import of SQL
• Module format is outdated

SOURCE:

• Current Readme outlines obsolete method or manual import

Tests Performed:

• Tested on a fresh compile of azerothcore/azerothcore-wotlk
• Tested all transmog functions in-game and verified databases had correct imports

How to Test the Changes:

1. Place in modules folder
2. Compile as normal
3. Spawn npc and test functions

[Nyeriah]

I wouldn't add a pull request template to modules. It is not going to be filled most of the time anyway, it is just a bother. I won't bother filling it myself.

Changes to modules usually aren't/shouldn't be complex enough to require such a detailed overview.