[Multiple-Profile]fix: external directory not created for profile

[criticalAY]

Purpose / Description

Fixes a VERY BIG BLUNDER that I did earlier, I overlooked external dir. but thanks to @david-allison I figured this one, apart from deletion the addition logic was also missing

Fixes

• Fixes part of Add support for profiles #18117

Approach

See commit

How Has This Been Tested?

Unit test to verify that directory was created

Learning (optional, can help others)

Always doc first

Checklist

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