Smart chart1.1

cn:
1.优化横轴文字展示；
2.新增横轴文字旋转；
3.解决手势冲突；
4.重构缩放以及旋转代码
en:

1. optimize cross axis text display;
2. add new cross axis text rotation;
3. solving gesture conflicts;
4. refactoring, scaling, and rotating code