docs: add ADR for defining API for querying permissions from MFEs for current user FC-0099 #68

Job	Run time
tests (ubuntu-latest, 3.11, pii_check)	35s
tests (ubuntu-latest, 3.11, quality)	29s
tests (ubuntu-latest, 3.11, django52)	32s
tests (ubuntu-latest, 3.11, django42)	35s
tests (ubuntu-latest, 3.11, docs)	43s
tests (ubuntu-latest, 3.12, django42)	27s
tests (ubuntu-latest, 3.12, django52)	33s
tests (ubuntu-latest, 3.12, pii_check)	29s
tests (ubuntu-latest, 3.12, docs)	44s
tests (ubuntu-latest, 3.12, quality)	31s
	5m 38s

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