Function load_texture_with_image 

pub fn load_texture_with_image(
    context: &GraphicsContext,
    name: &str,
    img: DynamicImage,
    texture: Texture,
    textures: &mut TextureMap,
)

Loads a pre-created Texture with an associated DynamicImage into the asset store.

Useful for when the user wants to create a Texture on their own, e.g. by using a more exotic format and way of loading of the image.