NAS-3868 extend user and organisation service

[hkad98]

• added method update_oidc_parameters in organization service
• changed create to create_or_update for users and user groups
• changed storing users and user groups to layout
• added test support

[ghost]

Build succeeded (check pipeline).

[codecov-commenter]

Codecov Report

Merging #108 (3947909) into master (86fea2a) will increase coverage by 0.10%.
The diff coverage is 95.90%.

@@            Coverage Diff             @@
##           master     #108      +/-   ##
==========================================
+ Coverage   91.20%   91.30%   +0.10%     
==========================================
  Files          68       68              
  Lines        4037     4096      +59     
==========================================
+ Hits         3682     3740      +58     
- Misses        355      356       +1     

Impacted Files	Coverage Δ
...oddata_sdk/catalog/user/entity_model/user_group.py	93.61% <89.47%> (-3.16%)	⬇️
.../catalog/organization/entity_model/organization.py	94.28% <93.54%> (+14.28%)	⬆️
...a-sdk/gooddata_sdk/catalog/organization/service.py	95.45% <93.75%> (-4.55%)	⬇️
...ooddata_sdk/catalog/user/declarative_model/user.py	100.00% <100.00%> (ø)
...a_sdk/catalog/user/declarative_model/user_group.py	100.00% <100.00%> (ø)
...sdk/gooddata_sdk/catalog/user/entity_model/user.py	98.21% <100.00%> (+0.34%)	⬆️
gooddata-sdk/gooddata_sdk/catalog/user/service.py	100.00% <100.00%> (ø)

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Build succeeded (check pipeline).

[yenkins]

Sonar scan result

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Build succeeded (gate pipeline).

• https://checklist.intgdc.com/job/compliance/job/gooddata-python-sdk-sonarqube-scan-zuul-gate/100/ : SUCCESS in 1m 29s
• https://checklist.intgdc.com/job/compliance/job/gooddata-python-sdk-fossa-scanning-zuul-el7/100/ : SUCCESS in 3m 09s (non-voting)
• https://checklist.intgdc.com/job/compliance/job/gooddata-python-sdk-merge-compliance-check/100/ : SUCCESS in 23s