Working on adding Classic support.

Addon mostly works in Classic Era and SoD, currently working through making sure I have all items in the filters.

The MenuUtil from retail is not available in Cata right now (hopefully getting released on 10/29/2024). Will work through BC, Wrath, and Cata items after I finish with Classic.

Planning to remove group features as part of this release.

Changed the constants to use a single flat array, instead of nested arrays. This change was made to allow for filtering by game versions, so each item now lists which game version(s) it is for and a loop was added to the file to build the same array structure that was used before while filtering out items that don't match the running game version. Need to explore if the flat array can be used in other places that currently nest loops for the nested array.

Currently planning to support 4 game versions: Retail, Classic Era, Classic Season (currently SoD), Classic Progression (currently Cata).

All work is being done in the Classic branch, which is up-to-date with my current work on this.

Finished the work to remove the group display functionality.
Added some options to handle hiding the display when in a group or instance to replace some of the group functionality

Classic looks to be in a good spot, but still need to test a bit more, and still waiting for Cata update so MenuUtil will work.

Added in v3.0.0