DetectedEvent in the type defs for luau should be a class

[WolfGangS]

The type def for DetectedEevent should use the class declaration method to allow users to use it in their scripts.

Currently it's a type

type DetectedEvent = {
    valid : boolean,
    index : number,
    can_change_damage : boolean,
    AdjustDamage : (self: DetectedEvent, Damage: number) -> nil,
    getDamage : (self: DetectedEvent) -> list,
    ...
}

As far as I know without a require import, types cannot be used in a script being checked by luau-lsp.

This results in dreaded red squiggles in code and no predictions

Proposed fix

This may need to be done in part in the viewer project with the xml defs file

declare class DetectedEvent
    valid : boolean
    index : number
    can_change_damage : boolean
    function adjustDamage(self): nil
    function getDamage(self): list
    ...
end

Will allow users to make use of it properly

[HaroldCindy]

FYI declare extern is preferred in new type files because declare class was decided to be misleading

[WolfGangS]

See #4

[WolfGangS]

Added main viewer pr secondlife/viewer#5015