Adding geodemo recipe

[giswqs]

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[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/geodemo) and found it was in an excellent condition.

[giswqs]

@conda-forge/help-python The recipe has passed all checks and is ready for your review. Thanks.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-webservice.

I was asked to ping @conda-forge/staged-recipes and so here I am doing that.