Bug 182062 Define and provide Date/Time format value
DateTime type has been supported in BIRT. Now, there's a proposal on support Date/Time type in BIRT Report Designer. In order to enable end user setting the format of Date/Time type, please define and provide format value for both Date and Time.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/elements/DesignChoiceConstants.java
public static final String CHOICE_LINE_ORIENTATION = "lineOrientation"; 
	public static final String LINE_ORIENTATION_HORIZONTAL = "horizontal"; 
	public static final String LINE_ORIENTATION_VERTICAL = "vertical"; 
	
	public static final String CHOICE_SECTION_ALIGN = "sectionAlign"; 
	public static final String SECTION_ALIGN_LEFT = "left"; 
	public static final String SECTION_ALIGN_CENTER = "center"; 
	public static final String SECTION_ALIGN_RIGHT = "right"; 
	
	public static final String CHOICE_DROP_TYPE = "dropType"; 
	public static final String DROP_TYPE_NONE = "none"; 
	public static final String DROP_TYPE_DETAIL = "detail"; 
	public static final String DROP_TYPE_ALL = "all"; 
	
	public static final String CHOICE_IMAGE_TYPE = "imageType"; 
	public static final String IMAGE_TYPE_IMAGE_BMP = "image/bmp"; 
	public static final String IMAGE_TYPE_IMAGE_GIF = "image/gif"; 
	public static final String IMAGE_TYPE_IMAGE_PNG = "image/png"; 
	public static final String IMAGE_TYPE_IMAGE_X_PNG = "image/x-png"; 
	public static final String IMAGE_TYPE_IMAGE_JPEG = "image/jpeg"; 
	
	public static final String CHOICE_LINE_SPACING = "lineSpacing"; 
	public static final String LINE_SPACING_LINES = "lines"; 
	public static final String LINE_SPACING_EXACT = "exact"; 
	
	public static final String CHOICE_ACTION_LINK_TYPE = "actionLinkType"; 
	public static final String ACTION_LINK_TYPE_NONE = "none"; 
	public static final String ACTION_LINK_TYPE_HYPERLINK = "hyperlink"; 
	public static final String ACTION_LINK_TYPE_DRILL_THROUGH = "drill-through"; 
	public static final String ACTION_LINK_TYPE_BOOKMARK_LINK = "bookmark-link";