NPC utility queries (#15843)

Content.Server/NPC/Queries/Curves/BoolCurve.cs

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+namespace Content.Server.NPC.Queries.Curves;
+
+public sealed class BoolCurve : IUtilityCurve
+{
+}

Content.Server/NPC/Queries/Curves/IUtilityCurve.cs

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+namespace Content.Server.NPC.Queries.Curves;
+
+[ImplicitDataDefinitionForInheritors]
+public interface IUtilityCurve
+{
+
+}

Content.Server/NPC/Queries/Curves/InverseBoolCurve.cs

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+namespace Content.Server.NPC.Queries.Curves;
+
+public sealed class InverseBoolCurve : IUtilityCurve
+{
+
+}

Content.Server/NPC/Queries/Curves/PresetCurve.cs

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+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Server.NPC.Queries.Curves;
+
+public sealed class PresetCurve : IUtilityCurve
+{
+    [DataField("preset", required: true, customTypeSerializer:typeof(PrototypeIdSerializer<UtilityCurvePresetPrototype>))] public readonly string Preset = default!;
+}

Content.Server/NPC/Queries/Curves/QuadraticCurve.cs

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+namespace Content.Server.NPC.Queries.Curves;
+
+public sealed class QuadraticCurve : IUtilityCurve
+{
+    [DataField("slope")] public readonly float Slope;
+
+    [DataField("exponent")] public readonly float Exponent;
+
+    [DataField("yOffset")] public readonly float YOffset;
+
+    [DataField("xOffset")] public readonly float XOffset;
+}

Content.Server/NPC/Queries/Curves/UtilityCurvePresetPrototype.cs

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+using Robust.Shared.Prototypes;
+
+namespace Content.Server.NPC.Queries.Curves;
+
+[Prototype("utilityCurvePreset")]
+public sealed class UtilityCurvePresetPrototype : IPrototype
+{
+    [IdDataField] public string ID { get; } = string.Empty;
+
+    [DataField("curve", required: true)] public IUtilityCurve Curve = default!;
+}