[Feature] Add Account and Character Based Expansion Settings

[Kinglykrab]

Description

• Adds the ability to limit expansions on an account or character basis.

Type of change

• New feature
• This change requires a documentation update

Checklist

• I have tested my changes
• I have performed a self-review of my code. Ensuring variables, functions and methods are named in a human-readable way, comments are added only where naming of variables, functions and methods can't give enough context.
• I have made corresponding changes to the documentation (if applicable, if not delete this line)
• I own the changes of my code and take responsibility for the potential issues that occur
• If my changes make database schema changes, I have tested the changes on a local database (attach image). Updated version.h CURRENT_BINARY_DATABASE_VERSION to the new version. (Delete this if not applicable)

[Akkadius]

Have a few things for this in the next few days

[Akkadius]

I think for this we should use data buckets.

We already have account / client flagging built into caching so I am far more comfortable for us leveraging buckets for this. We also already have quest hooks for all of this so we get many things for free.

#4603

[Kinglykrab]

I think for this we should use data buckets.

We already have account / client flagging built into caching so I am far more comfortable for us leveraging buckets for this. We also already have quest hooks for all of this so we get many things for free.

#4603

Works for me.