fix ScriptUI

[imotoyohoen]

1. fix alignment and alignChildren properties Declared _AlignmentProperty type. Changed alignment and alignChildren types from string to _AlignmentProperty.
2. fix justify property Declared _Justify type. Changed justify type from string to _Justify.
3. fix justify property Declared _Orientation type. Changed orientation type from string to _Orientation.
4. fix AutoLayoutManager class Changed LayoutManager class into AutoLayoutManager class.
5. fix Window.constructor Changed type of type property from string to "dialog" | "palette" | "window".
6. fix list control objects Fixed "add" function of ListItem, ListBox, DropDownList and TreeView.
7. declare KeyboardEvent class
8. fix truncate property Declared _Truncate type. Changed truncate type from string to _Truncate.
9. add title and titleLayout properties Declared _TitleLayout type. Added title and titleLayout properties.