ISSUE-2289: distribute Python apache-bookkeeper-client as a Conda package

[sijie]

Original Issue: apache#2289

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FEATURE REQUEST

1. Please describe the feature you are requesting.
   I would like to be able to install the Python client library (apache-bookkeeper-client) using the Conda package manager.

2. Indicate the importance of this issue to you (blocker, must-have, should-have, nice-to-have).
   Conda is the preferred package manager for a significant community of Python users. apache-bookkeeper-client is already distributed in Wheel format through PyPI. However, the Wheel format is not convenient for Conda users.

3. Provide any additional detail on your proposed use case for this feature.
   The Conda package format is well-documented. There are numerous examples of build recipes for Conda packages in the conda-forge community.

There is a related feature request for Pulsar.