custom_cupertino_picker 2.0.3

The default cupertino picker does not allow customization to the border color and scroll physics. So I've copied the class and added some properties to it.

[2.0.3] - 23 dec 2022.

• that was also not intended so need to make background transparent.

[2.0.2] - 23 dec 2022.

• removed default selection overlay, because it is not backwards compatible as expected.

[2.0.1] - 22 dec 2022.

• reimplemented from source

[2.0.0] - 22 dec 2022.

• added null safety

[1.0.1] - 23 feb 2021.

• some readme file changes

[1.0.0] - 23 feb 2021.

• initial release for custom cupertino picker