增加Axis的m_MinCategorySpacing设置类目轴默认的最小类目间距

Documentation~/en/api.md

@@ -443,6 +443,7 @@ The axis in rectangular coordinate.
 |Clone()||public Axis Clone()|
 |Copy()||public void Copy(Axis axis)|
 |GetAddedDataCount()||public int GetAddedDataCount()<br/>get the history data count. |
+|GetCategoryPosition()||public Vector3 GetCategoryPosition(int categoryIndex, int dataCount = 0)|
 |GetData()||public string GetData(int index)<br/>获得指定索引的类目数据 |
 |GetData()||public string GetData(int index, DataZoom dataZoom)<br/>获得在dataZoom范围内指定索引的类目数据 |
 |GetDistance()||public float GetDistance(double value, float axisLength = 0)<br/>获得值在坐标轴上的距离 |

Documentation~/en/configuration.md

@@ -422,6 +422,7 @@ The axis in rectangular coordinate.
 |inverse|false||Whether the axis are reversed or not. Invalid in `Category` axis.
 |clockwise|true||Whether the positive position of axis is in clockwise. True for clockwise by default.
 |insertDataToHead|||Whether to add new data at the head or at the end of the list.
+|minCategorySpacing|0|v3.11.0|The minimum spacing between categories.
 |icons|||类目数据对应的图标。
 |data|||Category data, available in type: 'Category' axis.
 |axisLine|||axis Line. [AxisLine](#axisline)|