ExportType API in Vue Chart3d API component

Defines the export file format. They are:

• PNG - Export the chart in PNG format.
• JPEG - Export the chart in JPEG format.
• SVG - Export the chart in SVG format.
• PDF - Export the chart in PDF format.
• XLSX - Export the chart data to XLSX.
• CSV - Export the chart to CSV.
• Print – Prints the chart.
• PNG
• JPEG
• SVG
• PDF
• XLSX
• CSV
• Print