Use Microsoft.CodeAnalysis.PublicApiAnalyzers

Reference: #1269

Use the same API analysis tool that is used in the RabbitMQ.Stream.Client library.

Author: lukebakken

Diff for: .editorconfig

@@ -158,8 +158,17 @@ csharp_space_between_parentheses = false
 csharp_space_between_square_brackets = false
 
 # Analyzers
+dotnet_code_quality.api_surface = public
 dotnet_code_quality.ca1802.api_surface = private, internal
 
+dotnet_public_api_analyzer.require_api_files = true
+
+dotnet_diagnostic.RS0026.severity = none
+dotnet_diagnostic.RS0027.severity = none
+dotnet_diagnostic.RS0036.severity = none
+dotnet_diagnostic.RS0041.severity = none
+dotnet_diagnostic.RS0051.severity = error
+
 # C++ Files
 [*.{cpp,h,in}]
 curly_bracket_next_line = true

Diff for: projects/RabbitMQ.Client/InternalAPI.Shipped.txt

@@ -0,0 +1 @@
+#nullable enable