Add a conda install option for omnixai

[sugatoray]

A conda installation option could be very helpful. I have already started working on this, to add omnixai to conda-forge.

Conda-forge PR:

• Adding omnixai from PyPI conda-forge/staged-recipes#20089

Once the conda-forge PR is merged, you will be able to install the library with conda as follows:

conda install -c conda-forge omnixai

💡 I will push a PR to update the docs once the package is available on conda-forge.

[yangwenz]

Thank you so much for adding the conda installation. This is very helpful for users. When the PR is ready, I will merge it to the main branch.