First Should Return DefaultPageSize (#677)
First Should Return DefaultPageSize (#677)

* First Should Return DefaultPageSize

If the `first` and `last` properties are not set, `first` should default to the `defaultPageSize`.

* Update ResolveConnectionContext.cs

graphql-dotnet/graphql-dotnet,joemcbride/graphql-dotnet,graphql-dotnet/graphql-dotnet,joemcbride/graphql-dotnet,graphql-dotnet/graphql-dotnet