[TF2] Allow players to re-earn lost achievement items by repeating their tasks

[IronFoxGaming]

There are a multitude of TF2 items and cosmetics that are earned through completing achievements, but these items also have the ability to be used in crafting or be deleted, resulting in a lot of players losing these items permanently one way or another, and having no possible way of getting them back. I think this should be fixed so that, if a player is missing an achievement item, they can repeat the task for it to regain that item. I don't have a way to view the raw code of the game, but I believe the check to give this item to the player could be switched from checking for the achievement activation for checking for the task for the achievement itself being completed. It could also be modified to check to give the item if the player doesn't already have one, like the soul gargoyle does.

For example, if a player dominates another player that's wearing a ghostly gibus, with their original one having been destroyed, they'd receive a new ghostly gibus. If a player lands a killing blow on the HHH with a melee weapon, and doesn't have haunted metal scrap or any of the items it turns into, then they earn haunted metal scrap again. If the player kills Monoculus and doesn't own a MONOCULUS hat, then they'd earn one, etc.

For some items earned through getting a number of achievements on a specific map or map set, these could be earned again my just playing the map again and having a check run at the end to see if all the achievements are complete and if the player has that item yet. Things like the Necro Smasher, Full Head of Steam, and Civilian Grade Jack Hat for example.

For the Frontline Field Recorder and the Director's Vision taunt, these would probably be best to both be earned through the Director's Vision's task of playing with replays a bit, as the Youtube API is no longer compatible with TF2, and cannot ever allow the player to earn 1000 views on a video anymore.

Achievement weapons that can otherwise be crafted or gotten through random drops shouldn't be re-earnable though, as these would end up clogging player inventories with weapons that they can't turn into scrap or otherwise craft with.