Bug 179674 Support time dimension in model
When define time dimension in model, the "itTime" property will be set. However this is not enough. We also need to know to what precision the time value should be evaluated, say, year, month, day, etc. Model needs to be enhanced to support such requirement.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/elements/DesignChoiceConstants.java
public static final String CHOICE_NORMAL = "normal"; 
	public static final String NORMAL_NORMAL = "normal"; 
	
	public static final String CHOICE_VERTICAL_ALIGN = "verticalAlign"; 
	/**
	 * @deprecated Now Engine is not support it.
	 */
	public static final String VERTICAL_ALIGN_BASELINE = "baseline"; 
	/**
	 * @deprecated Now Engine is not support it.
	 */
	public static final String VERTICAL_ALIGN_SUB = "sub"; 
	/**
	 * @deprecated Now Engine is not support it.
	 */
	public static final String VERTICAL_ALIGN_SUPER = "super"; 
	public static final String VERTICAL_ALIGN_TOP = "top"; 
	/**
	 * @deprecated Now Engine is not support it.
	 */
	public static final String VERTICAL_ALIGN_TEXT_TOP = "text-top"; 
	public static final String VERTICAL_ALIGN_MIDDLE = "middle"; 
	public static final String VERTICAL_ALIGN_BOTTOM = "bottom"; 
	/**
	 * @deprecated Now Engine is not support it.
	 */
	public static final String VERTICAL_ALIGN_TEXT_BOTTOM = "text-bottom"; 
	
	public static final String CHOICE_WHITE_SPACE = "whiteSpace";