isis: use unified map for interface addresses and redistributed routes #740

Job	Run time
Linter Check	1m 53s
Tests and Coverage Report	2m 44s
Code Formatting Check	21s
Tests (Arm64)	1m 58s
Check fuzz targets build	1m 27s
Check benchmark builds	3m 8s
docker-build-holod / build-and-attest	6m 44s
docker-build-holo-bundle / build-and-attest	27s
	18m 42s

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