feat: add instructor dashboard integration

[Ian2012]

Description

This PR set an instructor dashboard integration with a report of the answers of every student and an aggregate report:

Testing instructions

1. In your environment add the following setting:

      OPEN_EDX_FILTERS_CONFIG = {
        "org.openedx.learning.instructor.dashboard.render.started.v1": {
          "fail_silently": False,
          "pipeline": [
            "feedback.extensions.filters.AddFeedbackTab",
          ]
        },
      }
     FEATURES["ENABLE_FEEDBACK_INSTRUCTOR_VIEW"] = True

2. In your course add a feedback component.
3. Go to the course and answer the feedback component as a student or as an instructor.
4. Go to the instructor dashboard and verify the following table appears with the feedback information: http://local.overhang.io:8000/courses/course-v1:demo+demo+demo/instructor#view-feedback_instructor
   

[openedx-webhooks]

Thanks for the pull request, @Ian2012! Please note that it may take us up to several weeks or months to complete a review and merge your PR.

Feel free to add as much of the following information to the ticket as you can:

• supporting documentation
• Open edX discussion forum threads
• timeline information ("this must be merged by XX date", and why that is)
• partner information ("this is a course on edx.org")
• any other information that can help Product understand the context for the PR

All technical communication about the code itself will be done via the GitHub pull request interface. As a reminder, our process documentation is here.

Please let us know once your PR is ready for our review and all tests are green.

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (bc4ee70) 90.78% compared to head (6a9ad84) 92.41%.

Files	Patch %	Lines
feedback/extensions/filters.py	94.73%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #35      +/-   ##
==========================================
+ Coverage   90.78%   92.41%   +1.63%     
==========================================
  Files           2        5       +3     
  Lines         141      224      +83     
==========================================
+ Hits          128      207      +79     
- Misses         13       17       +4     

Flag	Coverage Δ
unittests	92.41% <95.18%> (+1.63%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[Ian2012]

@feanil would you like to leave early feedback on the frontend side?

[Ian2012]

@farhan Already rebased

[farhan]

Nits, rest all seems good
Good work overall 🌟

[Ian2012]

@farhan thanks for the review. I've deleted the file, corrected the comment, and added information in the README for the integration

[farhan]

@Ian2012 approved.
Are you going to squash the commits or may I squash and merge it?

[Ian2012]

@farhan please squash

[openedx-webhooks]

@Ian2012 🎉 Your pull request was merged! Please take a moment to answer a two question survey so we can improve your experience in the future.