common/t_shadow_painter library

1. torugo_widgets package
2. documentation
3. common/t_shadow_painter.dart

torugo_widgets package

1. Libraries
2. common/t_shadow_painter
3. torugo_widgets
4. utils/t_adaptive_shapes
5. utils/t_platform
6. widgets/containers/t_animated_container
7. widgets/containers/t_container