widget/ShapeEditWidget library

1. multi_clickable_shape_widget package
2. documentation
3. widget/ShapeEditWidget.dart

multi_clickable_shape_widget package

1. Libraries
2. multi_clickable_shape_widget
3. widget/ColorPickerDialog
4. widget/common_util
5. widget/constant
6. widget/edit_dialog
7. widget/LineBean
8. widget/ShapeController
9. widget/ShapeEditWidget
10. widget/ShapeWidget