Added a new gene that increases penis size on oral sex

Source/Genes/Special/Defs/HormonalSalivaExtension.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Verse;
+
+namespace RJW_Genes
+{
+    public class HormonalSalivaExtension : DefModExtension
+    {
+        /// <summary>
+        /// How much the genitalia will growth per interaction.
+        /// This is applied "flat", so if you have penis 0.5 and growthRate 0.05 it goes to 0.55, 0.60, 0.65 etc. 
+        /// </summary>
+        public float sizeIncrement;
+        /// <summary>
+        /// Upper Limit for the body size - default should be 2-3
+        /// </summary>
+        public float maxBodySize;
+        /// <summary>
+        /// How much more cum the pawn will make.
+        /// This is applied as multiplication, so if you have cum 20 and multiplier 1.1 you will have 22,24,27 etc. 
+        /// This leads to exponential growth, so try to keep it kinda low. 
+        /// </summary>
+        public float cumMultiplier;
+    }
+}