Enhance Select<T, TOwner> control

[YevgeniyShunevych]

Enhance Select<T, TOwner> control and related functionality.

Option<T, TOwner> Control

Create Option<T, TOwner> control with the following public members:

public DataProvider<bool, TOwner> IsSelected { get; }

public TOwner Select();

Add Properties to Select<T, TOwner>

public ControlList<Option<T, TOwner>, TOwner> Options { get; }

public Option<T, TOwner> SelectedOption { get; }

public DataProvider<int, TOwner> SelectedIndex { get; }

New Option Selection Behavior Attributes

Create SelectOptionBehaviorAttribute - the base behavior class for option selection of Select<T, TOwner> control. Inherit it from TermSettingsAttribute.

List of behavior implementations is:

• SelectByTextAttribute
• SelectByValueAttribute
• SelectByLabelAttribute
• SelectByAttribute