Add ADR for Authentication And Roles Feature

[jmayer-lm]

Description

Add ADR for Authentication and Roles feature work.

Addressed Issue

N/A

Additional Details

N/A

Checklist

• [x ] I have read and understand the contributing guidelines
• [ ] ~~This PR fixes a defect, and I have provided tests to verify that the fix is effective~~
• [ ] ~~This PR implements an enhancement, and I have provided tests to verify that it works as intended~~
• [ ] ~~This PR introduces changes to the database model, and I have updated the migration changelog accordingly~~
• [ ] ~~This PR introduces new or alters existing behavior, and I have updated the documentation accordingly~~

[owasp-dt-bot]

:tada: Snyk checks have passed. No issues have been found so far.

:white_check_mark: security/snyk check is complete. No issues have been found. (View Details)

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +18.46% (target: -1.00%)	:white_check_mark: ∅ (target: 70.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (b190a7c3149df1d26f510366dd9fa492af278cad)	201	132	65.67%
Head commit (3494909125c850a3928ddc25a667d208b994a81f)	7006 (+6805)	5894 (+5762)	84.13% (+18.46%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1787)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[nscuro]

Hey @jmayer-lm there's still a merge conflict here, can you resolve that?