[w32socket] Use coop handles for icalls in System.Net.Sockets.Socket

[w32socket] Use coop handles for icalls in System.Net.Sockets.Socket

- Use coop handles for create_object_from_sockaddr

  Eventually want to rewrite its callers to use
  create_object_handle_from_sockaddr directly.

- Use coop handles for

  - LocalEndPoint_internal

  - RemoteEndPoint_internal

- inside create_sockaddr_from_object

  Eventually callers should be updated to use create_sockaddr_form_handle
  directly.

- Use coop handles for

  - ReceiveFrom_internal

  - Bind_internal

  - Connect_internal

  - SendTo_internal

- Remove dead code (create_object_from_sockaddr, create_sockaddr_from_object)

- Use coop handles for

  - Receive_internal WSABUF[]

  - Receive_internal byte[]

  - Send_internal

  - Send_array_internal

  - SetSocketOption_internal

  - GetSocketOption_arr_internal

  - GetSocketOption_obj_internal

  - IOControl_internal

  - SendFile_internal

- Remove more dead code

- Use coop handles for

  - Socket_internal

  - Select_internal

- Trivial coop handles conversion for several icalls in System.Net.Sockets.Socket

  None of these functions use managed objects, so just add a MonoError* argument.