Add dynamic column width support

[Hummel37]

Add support for dynamic column width. #517
This currently only works for cells that don't use row or column spans.

[Hummel37]

I have made here a repository which generates random user data and creates a pdf with the data.
Here are both pdf's so you can see the difference.
Before.pdf
After.pdf

[Hummel37]

I have noticed that the width of the columns differs on the different sheets. This is due to the "ShowOnce" element. On page 2, the sizes of the cells from page 1 are not calculated because they are already rendered.
I don't know exactly what the element is for. But wouldn't it theoretically be enough to calculate the width of the columns once per table instead of doing it once for each page? Or can the width of the columns on the individual sheets in the same table be different?

[MarcinZiabek]

I don't know exactly what the element is for. But wouldn't it theoretically be enough to calculate the width of the columns once per table instead of doing it once for each page? Or can the width of the columns on the individual sheets in the same table be different?

It is expected that elements may have different sizes across pages. ShowOnce is only one potential root cause.

I understand the desired behavior is that shrank/grown columns should have identical widths across all pages. In such a case, determining all widths will be genuinely challenging, as changing width also potentially changes displayed content, creating a feedback loop.

[Hummel37]

Personally, I don't care if the columns are the same width on each sheet. For me it fits as it is after the PR.
I tested it locally without ShowOnce and noticed that the width was the same on all pages. Of course, if the elements can have different widths on different pages (although I don't understand how this is possible), it can stay that way.

[Hummel37]

I have updated the pr to fix the different columns width per page.
Now, after the first time UpdateColumnsWidth is called the width of all columns are stored.
If the method is called again the stored values are used. I hope this is okay so...

[Hummel37]

@MarcinZiabek Could you look at this pr again? It could really help me 😅