Add reagent sources to the guidebook (#22627)

* source in my guidebook

* finish it!

* sir yes sir oorah

* network that bitch, baby

Content.Shared/Chemistry/Reaction/ReactionPrototype.cs

@@ -83,6 +83,17 @@ namespace Content.Shared.Chemistry.Reaction
         [DataField("priority")]
         public int Priority;
 
+        /// <summary>
+        /// Determines whether or not this reaction creates a new chemical (false) or if it's a breakdown for existing chemicals (true)
+        /// Used in the chemistry guidebook to make divisions between recipes and reaction sources.
+        /// </summary>
+        /// <example>
+        /// Mixing together two reagents to get a third -> false
+        /// Heating a reagent to break it down into 2 different ones -> true
+        /// </example>
+        [DataField]
+        public bool Source;
+
         /// <summary>
         ///     Comparison for creating a sorted set of reactions. Determines the order in which reactions occur.
         /// </summary>

Content.Shared/Kitchen/Components/ExtractableComponent.cs

@@ -0,0 +1,17 @@
+using Content.Shared.Chemistry.Components;
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Kitchen.Components;
+
+/// <summary>
+/// Tag component that denotes an entity as Extractable
+/// </summary>
+[RegisterComponent, NetworkedComponent]
+public sealed partial class ExtractableComponent : Component
+{
+    [DataField("juiceSolution")]
+    public Solution? JuiceSolution;
+
+    [DataField("grindableSolutionName")]
+    public string? GrindableSolution;
+};