[chore][sql, lua, cpp] Starts mob ecosystem cleanup

[Frankie-hz]

I affirm:

• I understand that if I do not agree to the following points by completing the checkboxes my PR will be ignored.
• I understand I should leave resolving conversations to the LandSandBoat team so that reviewers won't miss what was said.
• I have read and understood the Contributing Guide and the Code of Conduct.
• I have tested my code and the things my code has changed since the last commit in the PR and will test after any later commits.

What does this pull request do?

Starts the re-organization of mob_family_system.sql. This is the first PR of an overhaul of the naming system for mobs as a whole.

Old Naming System
ecosystem -> superFamily -> family

New Naming System
ecosystem -> family -> species

• Adds new mob_species lua and mob_family luas with proper names. These will be used in the next few PRs for the renaming and re-organization of mob_family_system.sql
• Removes AVATAR as an ecosystem and fixed cpp call
• Updated mob_family_system to reflect new ID numbers for ecosystem (All 6+ just got a -1)

Steps to test these changes

Run around kill some things.

Nothing really changed just enum re-numbering