Feat: Add new android shadow color properties

[SephReed]

This answer on stack overflow links to all of the and shows an example: https://stackoverflow.com/a/51098370/4808079

It might also be nice to create a couple functions which will work on both android and ios, by implementing whichever way is possible.

[rnmhdn]

this feature would be great.

[san3k1990]

Is there currently a way to set the shadow color to android?