整理代码结构，支持Package Manager添加

Scripts/Runtime/BarChart.cs

@@ -0,0 +1,35 @@
+/******************************************/
+/*                                        */
+/*     Copyright (c) 2018 monitor1394     */
+/*     https://github.com/monitor1394     */
+/*                                        */
+/******************************************/
+
+using UnityEngine;
+
+namespace XCharts
+{
+    [AddComponentMenu("XCharts/BarChart", 14)]
+    [ExecuteInEditMode]
+    [RequireComponent(typeof(RectTransform))]
+    [DisallowMultipleComponent]
+    public class BarChart : CoordinateChart
+    {
+
+#if UNITY_EDITOR
+        protected override void Reset()
+        {
+            base.Reset();
+            m_Title.text = "BarChart";
+            m_Tooltip.type = Tooltip.Type.Shadow;
+            RemoveData();
+            AddSerie(SerieType.Bar, "serie1");
+            for (int i = 0; i < 5; i++)
+            {
+                AddXAxisData("x" + (i + 1));
+                AddData(0, Random.Range(10, 90));
+            }
+        }
+#endif
+    }
+}