Support Required Attribute

[sandromastronardi]

azure-functions-extensions-swashbuckle/src/AzureFunctions.Extensions.Swashbuckle/AzureFunctions.Extensions.Swashbuckle/FunctionApiDescriptionProvider.cs

Line 277 in 159797e

bool optional = bindingSource == BindingSource.Query || match.Value.Contains("?");

Items are optional by default if they are query String parameters or when there is a question mark (?) in the URL parameter... But When you use custom binding to add your model in the method it appears as a body parameter that is optional, but of course, this is required (in many cases I presume) so it would be great if the Required attribute could be read here to make a parameter required... But the same goes for query parameters I guess.

Of course, it also needs to be used here too:

azure-functions-extensions-swashbuckle/src/AzureFunctions.Extensions.Swashbuckle/AzureFunctions.Extensions.Swashbuckle/FunctionApiDescriptionProvider.cs

Line 179 in 159797e

description.ActionDescriptor.Parameters.Add(new ParameterDescriptor

So that it can be rendered as required (not optional)