This PR adds "costume bundles", a storage item for full costumes in a
single bag. Many items in the AutoDrobe have been replaced with their
respective costume bundles. You can also equip costume bundles in
loadouts.

In addition, the AutoDrobe's stock has been completely rearranged,
ideally to make things more intuitive. Clown / mime / musician stuff
first, then costume bundles, then everything else (roughly grouped by
item slot category).
Halloween feature. Also, the AutoDrobe's stock was very messy and
unintuitive and I felt it was good of a time as any to clean up.
New base entity for costume bundles, and then individual bundle
prototypes for each costume.

Some non-clothing entity prototypes were given a `CostumeItem` tag to
allow them to be inserted into costume bundles.

Many individual items in AutoDrobe and the theatrical performance crates
were replaced with bundles; ultimately, nothing should be actually
"lost". Also, rearranged AutoDrobe.

A new loadout category, "Costumes", with many costume bundles. You get
one. Some bundles have playtime requirements - namely the jester, circus
clown, and musician bundles.

Added a stupid C# check to prevent a debug assert error related to
attempting to set ContainerHeld's fill status before the container has
been initialized.

No inhands sorry I'm tired

Costume bundles:

<img width="744" height="616" alt="image"
src="https://github.com/user-attachments/assets/2c69b214-4020-46cb-a282-284363c8bbe9"
/>

Loadouts:

<img width="964" height="603" alt="image"
src="https://github.com/user-attachments/assets/ada069de-abd6-4c91-8e7b-94628c9d07f6"
/>

Rearranged AutoDrobe:

<details>
<summary>Click to expand</summary>

<img width="350" height="915" alt="image"
src="https://github.com/user-attachments/assets/4c74b69c-cb17-405a-a230-5a0ce96228df"
/>
<img width="343" height="901" alt="image"
src="https://github.com/user-attachments/assets/36ed6de4-d0c7-4c7c-aec5-e5ac4f053e7d"
/>
<img width="347" height="918" alt="image"
src="https://github.com/user-attachments/assets/efc6072f-e503-4929-a2ae-0f43071f43ee"
/>
<img width="349" height="913" alt="image"
src="https://github.com/user-attachments/assets/02fd95b7-e1be-4073-b119-f1125a118a4b"
/>
<img width="343" height="907" alt="image"
src="https://github.com/user-attachments/assets/0a55bac2-4bc2-477d-94cf-e5e1ab5321f4"
/>
<img width="334" height="965" alt="image"
src="https://github.com/user-attachments/assets/47e8d31e-6f25-4f14-9eac-ed8609d14c7f"
/>

</details>

Theatrical Performances Crate:

<img width="542" height="507" alt="image"
src="https://github.com/user-attachments/assets/514e1daa-ffd6-4828-8447-8d4929e79281"
/>
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Only thing is the massive restructure of AutoDrobe inventory and mild
rearrangement of the contents of the theatrical performances crate - may
cause annoying merge conflicts later

**Changelog**
:cl:
- add: Many individual costume parts in the AutoDrobe and theatrical
performances crate have been replaced with "costume bundles", a storage
item for costume parts specifically.
- tweak: The AutoDrobe's inventory has been majorly consolidated and
rearranged. The items inside are sorted by clown, mime, and musician
items first, then costume bundles, then everything else.
- add: You can now take a costume bundle in your loadouts - find it
under Items! You know, in case an occasion that necessitates bringing
your own costume arises.