Create a Thumbnail of an Image, based on input image file, and a max size factor to resize the image.

The extension has two inputs:

- The 'SourceImageBin';

- MaxSize.

The max size is to calculate the thumbnail proportion. 

The calc is based on the follwing formula:

if (ImageOriginal.Width > (ImageOriginal.Width .Height)

{

return new Size(MaxSize,(int)(((double)(ImageOriginal.Width .Height / (double)(ImageOriginal.Width .Width) * MaxSize));

}

else

{

return new Size((int)(((double)(ImageOriginal.Width .Width / (double)(ImageOriginal.Width .Height) * MaxSize), MaxSize);

}