Add option to allow for circular embedded image

[Bill Odida]

Is your feature request related to a problem? Please describe.
Currently the embedded image is only in a square .

Describe the solution you'd like
I think there needs to be an option to create a circular avatar style embedded image

Describe alternatives you've considered
Adding the parameter 'EmbeddedImageShape' an enum . and if its null it defaults as is but if the shape is circular it uses the circular shape.