Add tqdm to pandas_to_eland()

[V1NAY8]

Closes #294

• Added tqdm functionality for pandas_to_eland()

• If we want the progress bar to disappear we will need to just add leave=False to tqdm context manager at line 234

@sethmlarson

Please review if the implementation is correct, I will add notebook tests for this once review is done. 😃

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[V1NAY8]

Added tests, updated requirements*.txt

[sethmlarson]

Thanks, few comments for you

[V1NAY8]

Yep @sethmlarson , Made changes,
Also in setup.py install-requires has elasticsearch>=7.7, but in our jenkins matrix we also test for 7.6.
Should I remove it?

[sethmlarson]

I'll handle the elasticsearch-py stuff, there's a subtle change that needs to be made regarding which elasticsearch-py version to install

[V1NAY8]

Ask jenkins to test this please

[sethmlarson]

jenkins test this please

[V1NAY8]

Also I took reference for ipython check from
ipython/ipython#9732 (comment)

[V1NAY8]

@sethmlarson Anything else required on this change?