Give the modules settings its own tab


![screen shot 2013-07-20 at 11 52 38 am](https://f.cloud.github.com/assets/618346/830546/45757b0a-f15d-11e2-84c7-8d8cfa46de1f.png)

![screen shot 2013-07-20 at 11 52 47 am](https://f.cloud.github.com/assets/618346/830539/d6648472-f15c-11e2-8439-88336b87b3ae.png)

This moves the module settings into its own tab instead of grouped with the hardware configuration page.  The later was pretty weird since the only commonality is the fact they are settings that apply only on power up.  This also means that trying to save the hwsettings doesn't result in a lot of failed transactions.

Once this is merged, I would suggest we consider moving the other tabs such as CameraStab, TxPID and Autotune into this general module tab.  We can show only the widgets appropriate based on what is in ModuleSettings on power up.  It might also be worth rethinking the layout entirely - so have a page that just shows the enabled modules and then move each module specific settings to its own task if there are any.