Fix name violation for private protected

[vsfeedback]

VSF_TYPE_MARKDOWNProblem 1)
Define interface named abc wit accessibility modifier private protected. There is no suggestion to fix name violation to IAbc. That's inconsistent because for private, protected, public, internal and protected internal there is suggestion for fix.

Problem 2)
Generate .editorconfig from settings. The following code is generated. I think that there should be also private_protected included.

dotnet_naming_symbols.interface.applicable_kinds = interface
dotnet_naming_symbols.interface.applicable_accessibilities = public, internal, private, protected, protected_internal
dotnet_naming_symbols.interface.required_modifiers = 

This issue has been moved from https://developercommunity.visualstudio.com/content/problem/587679/fix-name-violation-for-private-protected.html
VSTS ticketId: 901099
These are the original issue comments:

Visual Studio Feedback System on 5/29/2019, 10:53 PM (12 days ago):

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These are the original issue solutions:
(no solutions)