Add Certificate Type

[sumandari]

Please see #1371

• [x] Part 1 : Create a new model for certification course types and an admin page for creating / deleting types.
• [x] Part 2 : In the certification menu, add a place for certification managers to manage the list of certificate types. Only certification managers can see this menu.
• [x] Part 3 : Setting the attendance type on the course.
• [x] Part 4 : Update the template to get the certification type text from the course model.

[codecov[bot]]

Codecov Report

Merging #1383 (f2254ea) into develop (b2895c7) will increase coverage by 0.22%. The diff coverage is 97.18%.

@@             Coverage Diff             @@
##           develop    #1383      +/-   ##
===========================================
+ Coverage    64.52%   64.74%   +0.22%     
===========================================
  Files          180      182       +2     
  Lines         9703     9773      +70     
  Branches      1232     1242      +10     
===========================================
+ Hits          6261     6328      +67     
- Misses        3194     3195       +1     
- Partials       248      250       +2     

Impacted Files	Coverage Δ
django_project/certification/urls.py	100.00% <ø> (ø)
...go_project/certification/views/certificate_type.py	94.73% <94.73%> (ø)
django_project/certification/admin.py	61.53% <100.00%> (+2.77%)	:arrow_up:
django_project/certification/forms.py	59.51% <100.00%> (+0.14%)	:arrow_up:
django_project/certification/models/__init__.py	100.00% <100.00%> (ø)
...o_project/certification/models/certificate_type.py	100.00% <100.00%> (ø)
django_project/certification/models/course.py	90.76% <100.00%> (+0.29%)	:arrow_up:
django_project/certification/views/__init__.py	100.00% <100.00%> (ø)
django_project/certification/views/certificate.py	53.05% <100.00%> (+0.41%)	:arrow_up:

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[sumandari]

Demo:

Only super users and certification managers can access certification types menu

https://user-images.githubusercontent.com/40058076/147897606-ca3c16c9-8660-4a8b-aba0-4152bcb4a04f.mp4

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Manage certificate types to be enabled on the projects

https://user-images.githubusercontent.com/40058076/147897607-8dbe7753-0035-4523-b8ed-05b626008cc9.mp4

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[dimasciput]

LGTM please merge @sumandari