[GTA] Update game data files to comply with forthcoming database specification

[phillf]

Describe the bug
Current version of game data files follow the old database specification. Table & column names don't posses consistent formatting. Some use underscores (TABLE_NAME) and some use Camel Case (aTableName). They may even be some Pascal Case (AnotherTableName).

Expected behavior
Table and column names should follow the Camel Casing convention (aTableName, anotherTableName).

Additional context
Maintaining consistent formatting makes code:

• MAINTAINABILITY - Having a consistent database schema will help to make code more maintainable when writing or modifying database queries.
• READABILITY - Having a consistent database schema make more code readable and will decrease cognitive complexity.