Atomosk

Issue #139

1

Some breaking changes: - `barcode.EncodedImage` becomes `barcode.Encode()`. - `barcode.GetImageData` uses standard enum. - `barcode.SaveImage` becomes `using var image = barcode.Encode(); image.Save` - `barcode.GetSizeOfImage` becomes `using var image = barcode.Encode(); image.GetSizeOfImage`...

static DoEncode returns disposed Image

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Also calling Encode multiple times does not dispose previously generated image. I think the `_Encoded_Image` field should be removed from the `Barcode` class. Methods like `GetSizeOfImage` and `SaveImage` are just...

1. Open http://plnkr.co/edit/sQqhYVlZwd2VxGTGoEA8?p=preview in browser window small enough for scrollbars to appear. 2. Scroll preview area, while draging yellow rectangle, either by draging rectangle to border or with mouse wheel....

### Description What will happen if `ExecuteAsync` is a synchronous and is a really long running, like several hours? `StartAsync` will hang for a long time and the rest of...