[BD-27] [TNL-7921] [BB-3632] Hide wiki tab by default and add option to make it visible

Description

This PR adds support of policy file and hiding of course wiki tab by default.

Also, it removes some Python 3.5 classifiers from `setup.py` and adds a few handy make commands.

*JIRA tickets*:

*Discussions*:

*Testing instructions*:

1. Enter virtual environment.
1. `make install`.
1. `make fixture_cc`.
1. `cc2olx -i cc_fixture.imscc`.
1. Import `$(pwd)/output/cc_fixture.tar.gz` to LMS.
1. Check that course wiki tab is invisible.

*Reviewers*

  • [ ] @shimulch

  • [ ] @alangsto

Done

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Unassigned

Reporter

Open Source Pull Request Bot

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PR Number

40

Repo

edx/cc2olx

Contributor Name

Demid Avramenko

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Github Lines Added

122

Github Lines Deleted

11

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