added more utilty packges

Packages/com.jovian.inspector/Editor/Attributes/SeparatorAttribute.cs

@@ -0,0 +1,58 @@
+using UnityEngine;
+
+namespace InspectorToolkit
+{
+	public class SeparatorAttribute : PropertyAttribute
+	{
+		public readonly string Title;
+		public readonly bool WithOffset;
+
+
+		public SeparatorAttribute()
+		{
+			Title = "";
+		}
+
+		public SeparatorAttribute(string title, bool withOffset = false)
+		{
+			Title = title;
+			WithOffset = withOffset;
+		}
+	}
+}
+
+#if UNITY_EDITOR
+namespace InspectorToolkit.Internal
+{
+	using UnityEditor;
+	
+	[CustomPropertyDrawer(typeof(SeparatorAttribute))]
+	public class SeparatorAttributeDrawer : DecoratorDrawer
+	{
+		private SeparatorAttribute Separator => (SeparatorAttribute) attribute;
+		
+		public override float GetHeight() => Separator.WithOffset ? 40 : Separator.Title.IsNullOrEmpty() ? 28 : 32;
+		
+		public override void OnGUI(Rect position)
+		{
+			var title = Separator.Title;
+			if (title.IsNullOrEmpty())
+			{
+				position.height = 1;
+				position.y += 14;
+				GUI.Box(position, string.Empty);
+			}
+			else
+			{
+				Vector2 textSize = GUI.skin.label.CalcSize(new GUIContent(title));
+				float separatorWidth = (position.width - textSize.x) / 2 - 5;
+				position.y += 19;
+
+				GUI.Box(new Rect(position.xMin, position.yMin, separatorWidth, 1), string.Empty);
+				GUI.Label(new Rect(position.xMin + separatorWidth + 5, position.yMin - 10, textSize.x, 20), title);
+				GUI.Box(new Rect(position.xMin + separatorWidth + 10 + textSize.x, position.yMin, separatorWidth, 1), "");
+			}
+		}
+	}
+}
+#endif