Add `tables` skill for displaying tabular data

[michael-hawker]

Follow-on to #16

Basically, add a dedicated Skill talking about table layouts and options.

Avoid the DataGrid.

Provide three options:

1. Simple responsive non-interactive/customizable fixed data: Grid
2. Slightly customizable but not full-on spreadsheet: DataTable from WCT Labs
3. Full-on editing/custom scenarios: WinUI.TableView

[marcelwgn]

I dont think we should recommend 3 as is. There are alternatives like the Telerik control so I dont think its a clear cut case.