Simple child Tracking

[squealingpiggies]

The changes to code for the test simulations in #175

[Calandiel]

The children button seems to be too small:

[Calandiel]

Besides that, seems fine, wdyt? @ineveraskedforthis

[ineveraskedforthis]

Looks fine.

[squealingpiggies]

I don't know if these changes should actually be included, it was more of a proof of concept to see how it affected growth (that was asked for in the related issue discussion). It should probably be looked at a bit more in depth before merging.

[Calandiel]

Child tracking and the UI for it at least ought to be included, imhp

[squealingpiggies]

Ok, fair enough. I fixed the UI and made a very generic list-widget that takes any list and a table of columns from the character-list widget which is shown off with an additional tab in characters that shows their warriors. The list-widget still needs to have the bounds be anchors and stretch the columns using the render_closures as weighted widths and minimum heights instead of pixel values but it is getting to be both very versatile and easy to use.

[squealingpiggies]

One last additon to ui changes. I added scaling calculations to the table widget from engine.ui to weight the widths of the render closures and scale table items into the rect provided. It seems to work for both the standard character-list and the generic list-widget without changes to either's code.

[Calandiel]

Seems fine to me, thanks!