Adding: Cropper.Blazor 

We could consider adding [Cropper.Blazor](https://github.com/CropperBlazor/Cropper.Blazor) to the [Libraries & Extensions](https://github.com/AdrienTorris/awesome-blazor#tools--utilities) for cropping images in Blazor Server, WASM, MAUI and some hybrids with MVC, etc.

Behold demo site: https://cropperblazor.github.io/demo

PR: https://github.com/AdrienTorris/awesome-blazor/pull/638