Added property `textPixelSize` to be configurable in `StatusPickerButton`.
Added signal `itemPickerChanged` to be directly notified when an item changes its selected property value.
Updated `selected` property properly in `StatusListPicker`.
Added new property `enableSelectableItem` to highlight an item when hovering.
Some documentation improvements.
It adds the `StatusItemPicker` control and `StatusListPicker` component and its corresponding documentation.
The new selector component is composed by a `StatusButtonPicker` and a drop-down list.
It adds sections in `ListView` by using `category` model property.
It incorporates a searcher in header.
The selector type can be customised as a `StatusRadioButton` or a `StatusCheckbox`.
It adds dynamic selection mechanism.
It adds a dynamic text fit between `name` and `shortName` text components.
It adds a specific page in `sandbox` and some models to play with that.
It extends `StatusPickerButton` to allow more than one type.
Closes#563
Noelia