Allow GQL Sandbox to view curves in CSV format

[mabijkerk]

When writing a TXT_TABLE query in the GQL Sandbox, there are multiple ways in which to show the output:

This is a very useful feature, but the TXT_TABLE (as far as I know) doesn't allow any curves to be specified. Querying a curve however, does not have the same options:

If you want to validate a curve by doing some calculations in Excel, it is quite a hassle to properly export it. It would therefore be very useful if curves could be presented as CSVs in the GQL Sandbox.

@antw @noracato this is not an urgent issue but would be an awesome enhancement of the Sandbox. I'm not sure which one of you is best suited to pick this up, so feel free to re-assign. Notifying @marliekeverweij

[github-actions]

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