Tables don't behave correctly when told their height in parent element

[test_case.zip](https://github.com/ArthurHub/HTML-Renderer/files/1510231/test_case.zip)

In the attached test case using the test WPF renderer, only the width is obeyed (in the example, 600px), the height is completely ignored. If you render this same HTML in a browser, the height/width of the container will be set, and the child table will fill to 100%.

I will try debugging and see if I can resolve this issue myself, but in-case I can't I'm still going to post this issue here.

Start by extracting and running test_case.zip with the test WPF renderer to reproduce the ignored height. Compare the WPF output with browser behavior for the container and child table, then trace the renderer's table and parent-height handling. Done means the specified container height is honored and the child table fills it as described.

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