Add OpenAPI tests for using various attribute data types

[bkoelman]

This PR adds OpenAPI tests for using various data types in attributes that behave like values, such as Int128/BigInteger/Half/Uri/IPAddress/Version and various others.

Depending on the built-in support (which varies per technology), the following custom converters may need to be added:

• Entity Framework Core database mapping:

  ModelConfigurationBuilder.Properties<YourType>().HaveConversion<YourTypeConverter>()

• Request/response body serialization:

  JsonApiOptions.SerializerOptions.Converters.Add(new YourTypeJsonConverter())

• Specify/override the format used in OpenAPI:

  SwaggerGenOptions.MapType<YourType>(() => new OpenApiSchema { Type = "...", Format = "..." })

• Parsing values in filter query strings: inherit from FilterParser and override GetConstantValueConverterForType

  protected override ConstantValueConverter GetConstantValueConverterForType(Type destinationType)
  {
      if (destinationType == typeof(YourType) || destinationType == typeof(YourType?))
      {
          // ...
      }
  
      return base.GetConstantValueConverterForType(destinationType);
  }

Changes in this PR:

• Publicly exposes RuntimeTypeConverter.GetFriendlyTypeName(), which expands generic type arguments
• Improved conversion from string to date/time values in RuntimeTypeConverter
• Add conversion from string to System.Uri in RuntimeTypeConverter
• Improved LiteralConstantExpression.GetStringValue for date/time values
• Include original request body parse exception in meta stack trace
• Use generic math in SumFilterParser example

Despite mentioned in the original issue, tuples are not covered because exposing them in an HTTP API is just odd.
Complex types and collections are not covered either, because how they work is likely going to change when #1439 is implemented.

Closes #1051.

QUALITY CHECKLIST

• Changes implemented in code
• Complies with our contributing guidelines
• Adapted tests
• N/A: Documentation updated

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.80%. Comparing base (91c9392) to head (6508259).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1832      +/-   ##
==========================================
+ Coverage   92.76%   92.80%   +0.03%     
==========================================
  Files         437      437              
  Lines       14821    14831      +10     
  Branches     2391     2392       +1     
==========================================
+ Hits        13749    13764      +15     
  Misses        654      654              
+ Partials      418      413       -5     

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