Increased shadow radius

[Zn4rK]

Is your feature request related to a problem? Please describe.

I have a design that needs quite a radius. 99 units. I can probably work around it, but this library has been a pleasure to work with, so I figured I should let you know that I need a bigger radius than the maximum allowed:

This is from the readme:

Shadow radius is limited to 25 or below: This limitation comes from Renderscript's blur effect. Solution: Let us know if this is an issue for you. This can probably be worked around by downscaling the shadow bitmap before applying the blur effect.

Describe the solution you'd like

I would like to use a bigger shadow radius.