Support for an embedded_graphics driver / DrawTarget?

[RaitoBezarius]

Hi there (again me), I am writing some graphics stuff with the library and I realize it would be nice to leverage existing libraries (embedded_graphics, tinybmp, etc.) to do graphics.

For this, I guess having an optional embedded_graphics DrawTarget optimized implementation would be interesting, see https://github.com/DianaNites/uefi-graphics/blob/main/src/lib.rs for an example.

The only problem I see is that pixel format is at runtime for UEFI and DrawTarget seems to use a "static" pixel format.

It's not clear to me if this is a fundamental issue or if it's side-steppable by creating a new PixelColor format which would be the enum of everything and contains possibly the PixelBitmask if needed to do custom formats.

What do you think about this?