message: Add option to set the format code of chart data tables
diff: @@ -851,7 +851,7 @@ function makeChartType(chartType: CHART_NAME, data: OptsChartData[], opts: IChar
  strXml += ' <c:numRef>'
  strXml += ' <c:f>Sheet1!$' + getExcelColName(idx + 1) + '$2:$' + getExcelColName(idx + 1) + '$' + (obj.labels.length + 1) + '</c:f>'
  strXml += ' <c:numCache>'
  - strXml += ' <c:formatCode>General</c:formatCode>'
  + strXml += ' <c:formatCode>' + (opts.dataTableFormatCode || 'General') + '</c:formatCode>'
  strXml += ' <c:ptCount val="' + obj.labels.length + '"/>'
  obj.values.forEach((value, idx) => {
  strXml += '<c:pt idx="' + idx + '"><c:v>' + (value || value === 0 ? value : '') + '</c:v></c:pt>'
  