New belt controls (#1298)

* Work for a madman

* God, that's a lot of hardcoding

* Fixed belt2 smartequip and cleaned up

* Continued clean up

* No scope creep!

* Replaced belt1 for upstream default belt

* Moved CP14OpenSkillMenu to CP14ContentContexts

* Changed naming of belt1 textures to just belt

* Updated new belt1 refrences

* I forgot to edit the RSI meta

* fix all BELT1 Texture instance

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Co-authored-by: Red <96445749+TheShuEd@users.noreply.github.com>

Content.Client/Clothing/ClientClothingSystem.cs

@@ -40,7 +40,7 @@ public sealed class ClientClothingSystem : ClothingSystem
         {Jumpsuit, "INNERCLOTHING"},
         {"neck", "NECK"},
         {"back", "BACKPACK"},
-        {"belt1", "BELT1"},
+        {"belt", "BELT"},
         {"belt2", "BELT2"},
         {"gloves", "HAND"},
         {"shoes", "FEET"},