Add top2vec package

[llperez]

Checklist

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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/top2vec) and found it was in an excellent condition.

[conda-forge-linter]

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

I wanted to let you know that I linted all conda-recipes in your PR (recipes/top2vec) and found some lint.

Here's what I've got...

For recipes/top2vec:

• requirements: build: python >= 3.6 should not contain a space between relational operator and the version, i.e. python >=3.6

[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/top2vec) and found it was in an excellent condition.

[llperez]

@conda-forge-admin ping conda-forge/help-python please.

[conda-forge-linter]

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

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

[BastianZim]

Are you sure cython and a build section is required? Upstream looks like pure normal python.

[llperez]

@BastianZim previous checks were failing as hdbscan depends on cython. Will try without the build section.

[BastianZim]

In that case please open an issue with hdbscan as that seems like an error with them: https://github.com/conda-forge/hdbscan-feedstock

If they don't reply soon we can keep it in here for now but then it would only be needed under run.

[llperez]

@BastianZim all good.