public Bitmap put(IconRow iconRow, Bitmap bitmap) {
        return put(iconRow.getId(), bitmap);
    }
public Bitmap put(IconRow iconRow, Bitmap bitmap) {
        return put(iconRow.getId(), bitmap);
    }
public Bitmap put ( IconRow iconRow , Bitmap bitmap ) { return put ( iconRow . getId ( ) , bitmap ) ; }
Cache the icon bitmap for the icon row

@param iconRow icon row
@param bitmap  icon bitmap
@return previous cached icon bitmap or null
Cache the icon bitmap for the icon row