Separate width enforcement for headers / footers from body cells

[gdamore]

I have some content where I would like to prevent wrapping of the body content. For example, a hostname, but I also have a column header (say for example "Failure Domain Host") which I am perfectly willing to see wrapped.

Unfortunately there is only a single MaxWidthEnforcer for the entire column. It would be nice to have the ability to have different values for this for the header and footer rows (I'm not really using footers yet, so just having the headers would be sufficient for now).

Btw, I do want to thank you for this very nice library. I've been able to do some pretty cool things with it. One thing I should probably figure out how to share is a much better handling of column enforcement, where the minimum width is calculated to avoid breaking up words in the middle when using WrapSoft.

[jedib0t]

I have to refactor ColumnConfig to support different Width params for Header/Footer/etc. With the current model, I'll have to create 6 more config variables, and it becomes uglier that it is already. I'll take this up for the next major version change.