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_ACTION_FORMAT_TYPE = "actionFormatType"; 
	public static final String ACTION_FORMAT_TYPE_HTML = "html"; 
	public static final String ACTION_FORMAT_TYPE_PDF = "pdf"; 
	
	public static final String CHOICE_TEXT_CONTENT_TYPE = "textContentType"; 
	public static final String TEXT_CONTENT_TYPE_AUTO = "auto"; 
	public static final String TEXT_CONTENT_TYPE_PLAIN = "plain"; 
	public static final String TEXT_CONTENT_TYPE_HTML = "html"; 
	public static final String TEXT_CONTENT_TYPE_RTF = "rtf"; 
	
	public static final String CHOICE_TEXT_DATA_CONTENT_TYPE = "textDataContentType"; 
	public static final String TEXT_DATA_CONTENT_TYPE_AUTO = "auto"; 
	public static final String TEXT_DATA_CONTENT_TYPE_PLAIN = "plain"; 
	public static final String TEXT_DATA_CONTENT_TYPE_HTML = "html"; 
	public static final String TEXT_DATA_CONTENT_TYPE_RTF = "rtf"; 
	
	public static final String CHOICE_OPRHANS = "orphans"; 
	public static final String ORPHANS_INHERIT = "inherit"; 
	
	public static final String CHOICE_WIDOWS = "widows"; 
	public static final String WIDOWS_INHERIT = "inherit"; 
	/**
	 * FormatType -- The target output format. The first constant is the name of
	 * FormatType choice. The followed constants are valid choice values of
	 * FormatType.
	 */
	public static final String CHOICE_FORMAT_TYPE = "formatType"; 
	public static final String FORMAT_TYPE_ALL = "all"; 
	public static final String FORMAT_TYPE_VIEWER = "viewer";