5.0.0-rc-3

• Added ReadBodyBufferedFromRequestAsync extension method to buffer and read a the request body and make subsequent reads possible (see #449)
• Changed how the serialization modules are structured:
  • IJsonSerializer is now Json.ISerializer
  • Utf8JsonSerializer is now Utf8Json.Serializer
  • NewtonsoftJsonSerializer is now NewtonsoftJson.Serializer
  • SystemTextJsonSerializer is now SystemTextJson.Serializer
  • IXmlSerializer is now Xml.ISerializer
  • DefaultXmlSerializer is now SystemXml.Serializer
• Converted all HttpContext extension methods into C# compatible extension methods, meaning that function arguments had to be merged into tuples
• Removed the => operator from Giraffe.EndpointRouting
• Changed the GET, POST, PUT, HEAD, etc. functions to accept an Endpoint list instead of an Endpoint
  • Before: GET => route "/foo" (text "bar"), After: GET [ route "/foo" (text "bar") ]
  • One can now compose routes easier:

    GET [
        route "/a" (text "A")
        route "/b" (text "B")
        route "/c" (text "C")
    ]

• Added GET_HEAD to the endpoint routing functions, which will handle a HEAD request for the same GET handler.