bedroll rework

[saintmuntzer]

Description

Reworks bedrolls to behave more like rollerbeds; rather than separate item and structure entities, the bedroll simply has a "rolled" and "unrolled" state.

• Adds bedroll entity with "rolled" and "unrolled" states.
• Slightly modifies the rolled bedroll sprite so it doesn't appear very off-center in inventory.
• Fixes a few typos in mattress descriptions.

Things that might be especially in need of review:

• The inventory size of the rolled bedroll (currently 2x2).
• The HealOnBuckle component.
• Any unintended inheritance from RollerBed that I didn't already catch.
• Not automatically unbuckling when the bedroll is folded. I believe this could be solved by changing Content.Shared.Buckle.Components.StrapComponent to include [DataField, AutoNetworkedField] on the Enabled variable and then using the code from a271b52, but I don't know if that would have other implications.

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TODO

• [ ] Revise the bedroll sprite, especially the "rolled" state which currently appears more like folded in half. (I'm not an experienced spriter and may not be able to do this myself.)

[github-actions[bot]]

RSI Diff Bot; head commit 47492559009adbaa4e00eb047ee188771898e3fa merging into c5a9d65099baeb5a997eaed21f64050cf8862df3 This PR makes changes to 1 or more RSIs. Here is a summary of all changes:

Resources/Textures/_Nuclear14/Structures/Furniture/bedsandchairs.rsi

| State | Old | New | Status | --- | --- | --- | --- | | bedroll_rolled |  |  | Modified | bedroll_unrolled |  |  | Modified

Edit: diff updated after 47492559009adbaa4e00eb047ee188771898e3fa