allow user to pass list of groups to be mapped to single flag type

[knightkd]

No change to original functionality and it adds the ability to pass in a list to GROUP_TO_FLAG_MAPPING.

This is useful for companies like mine that have many different managed security groups and may need to associate more than one group with a single flag.

example usage:
{"GROUP_TO_FLAG_MAPPING": { "is_staff": ["ALL_RWILLIAMS_DIRECT_EMPLOYEES", "ALL_SEDWARDS_DIRECT_EMPLOYEES"], "is_superuser": "APP_ADMIN_GROUP"}}

[codecov]

Codecov Report

Merging #104 into master will decrease coverage by 0.39%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #104      +/-   ##
==========================================
- Coverage   82.77%   82.38%   -0.40%     
==========================================
  Files           7        7              
  Lines         418      420       +2     
==========================================
  Hits          346      346              
- Misses         72       74       +2     

Impacted Files	Coverage Δ
django_auth_adfs/backend.py	79.74% <0.00%> (-1.03%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 41fa2b8...0f9a4d4. Read the comment docs.

[JonasKs]

Hi! (Read #121 for some background on why this have had no replies)

Could you add a test and docs for this? 😄

[joachimBurket]

Hi! We are also interested in passing a list of groups to a single flag type in my team.
@knightkd are you still interested in finishing it ? Otherwise I can add a test and update the doc for it to be merge :)

[JonasKs]

Since it's been stale I'm sure you can branch out from this and add tests+docs and I'll merge in the correct order. 😊

[JonasKs]

Solved in #172. Thank you for your contribution! 🎉