lfod1997

## Builds menu from given [param items].
## [br][url=https://gist.github.com/lfod1997/6e4ad613637d7e8411c1a603999b41d8]Source and usage[/url].
static func build_menu(
    menu_id: StringName, items: Array, handler: Callable,
    out_menus: Dictionary[StringName, PopupMenu], out_item_locator: Dictionary[StringName, Dictionary],
    separator_id: int = 10000
) -> PopupMenu:
    var menu := PopupMenu.new()
    var locator: Dictionary[int, int] # Converts ID to index in the built `PopupMenu`
    for it in items: