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/parser/StructureState.java
if ( StringUtil.isBlank( name ) )
			{
				handler
						.getErrorHandler( )
						.semanticError(
								new DesignParserException(
										DesignParserException.DESIGN_EXCEPTION_NAME_REQUIRED ) );
				valid = false;
				return;
			}
			propDefn = element.getPropertyDefn( name );
			if ( propDefn == null )
			{
				handler
						.getErrorHandler( )
						.semanticError(
								new DesignParserException(
										DesignParserException.DESIGN_EXCEPTION_INVALID_STRUCTURE_NAME ) );
				valid = false;
				return;
			}
		}
		if ( struct == null )
		{
			assert propDefn != null;
			
			
			struct = createStructure( (StructureDefn) propDefn.getStructDefn( ) );
			Structure.StructureContext structContext = new Structure.StructureContext(
					element, propDefn.getName( ) );