Bug 142430 Available data set should be invisible for dynamic image
Steps to reproduce: 1.New a sample data source and data set with table "PRODUCTLINES" 2.Add a dynamic image, binding with data set 3.Click "Expression Builder" Expected result: Available data set is not listed in Category to avoid user choose it Actual result: Available data set is listed in Category but we didn't support such expression like dataSetRow["image"]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ImageBuilder.java
} );
		dynamic = new Button( selectionArea, SWT.RADIO );
		dynamic.setText( Messages.getString( "ImageBuilder.Button.Dynamic" ) ); 
		dynamic.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent e )
			{
				switchTo( BLOB_TYPE );
			}
		} );
		resource = new Button( selectionArea, SWT.RADIO );
		resource.setText( Messages.getString( "ImageBuilder.ResourceFileType" ) ); 
		resource.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent e )
			{
				switchTo( FILE_TYPE );
			}
		} );
	}
	private void createInputArea( Composite parent )
	{
		inputArea = new Composite( parent, SWT.NONE );
		GridData gd = new GridData( GridData.FILL_BOTH
				| GridData.HORIZONTAL_ALIGN_BEGINNING );
		gd.widthHint = 300;
		gd.heightHint = 300;
		inputArea.setLayoutData( gd );
		inputArea.setLayout( new GridLayout( ) );
	}
	private void createPreviewArea( Composite composite )
	{