[FEATURE] Support Tasks endpoints

[RolfDeVries]

Elastic.Clients.Elasticsearch version:
8.x

Elasticsearch version:
8

.NET runtime version:
netcore 6

Operating system version:
Windows

Description of the problem including expected versus actual behavior:
I know the new Elastic.Clients.Elasticsearch is not feature complete yet.
But i would very much like to have the Tasks API in a future version
Also the range and daterange queries seem to be missing.

Steps to reproduce:
1.
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Expected behavior
Please add requested features in a future verion

[stevejgordon]

Thanks for raising this @RolfDeVries. We currently don't generate experimental (beta) APIs, but we can review options for supporting these in the client.