[NOT WORKING Partially] Method: PATCH, V2 controller does not have consumes attribute and V1 controller having application/merge-patch+json

[BlackRider97]

This is on top of #1

Issue microsoft#744

[BlackRider97]

Case-1 Correct content type
Expected status code: 201
Found status code: 201
✅

curl -X PATCH "http://localhost:5000/api/orders/42?api-version=1.0" -d '{"customer":"Bob Smith"}' -H "Content-Type: application/merge-patch+json" -v

*   Trying 127.0.0.1...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 5000 (#0)
> PATCH /api/orders/42?api-version=1.0 HTTP/1.1
> Host: localhost:5000
> User-Agent: curl/7.58.0
> Accept: */*
> Content-Type: application/merge-patch+json
> Content-Length: 24
>
* upload completely sent off: 24 out of 24 bytes
< HTTP/1.1 201 Created
< Date: Fri, 25 Jun 2021 13:32:25 GMT
< Content-Type: application/json; charset=utf-8
< Server: Kestrel
< Transfer-Encoding: chunked
< Location: http://localhost:5000/api/Orders/1
< api-supported-versions: 1.0, 2.0, 3.0
< api-deprecated-versions: 0.9
<
* Connection #0 to host localhost left intact
{"id":1,"createdDate":"2021-06-25T19:02:25.7297646+05:30","customer":"Bob Smith"}

Case-2 Incorrect content type
Expected status code: 415 Unsupported Media Type
Found status code: 405 Method Not Allowed
❌

curl -X PATCH "http://localhost:5000/api/orders/42?api-version=1.0" -d '{"customer":"Bob Smith"}' -H "Content-Type: application/json" -v

$ curl -X PATCH "http://localhost:5000/api/orders/42?api-version=1.0" -d '{"customer":"Bob Smith"}' -H "Content-Type: application/json" -v
*   Trying 127.0.0.1...
* TCP_NODELAY set
* Connected to localhost (127.0.0.1) port 5000 (#0)
> PATCH /api/orders/42?api-version=1.0 HTTP/1.1
> Host: localhost:5000
> User-Agent: curl/7.58.0
> Accept: */*
> Content-Type: application/json
> Content-Length: 24
>
* upload completely sent off: 24 out of 24 bytes
< HTTP/1.1 405 Method Not Allowed
< Date: Fri, 25 Jun 2021 13:32:12 GMT
< Content-Type: application/json; charset=utf-8
< Server: Kestrel
< Transfer-Encoding: chunked
< Allow: PATCH
< api-supported-versions: 1.0, 2.0, 3.0
< api-deprecated-versions: 0.9
<
* Connection #0 to host localhost left intact
{"error":{"code":"UnsupportedApiVersion","message":"The HTTP resource that matches the request URI 'http://localhost:5000/api/orders/42' with API version '1.0' does not support HTTP method 'PATCH'.","innerError":null}}