Send azure upload (#1334)

* Add direct upload api endpoints

* Create azure upload service

* Update max file size

* Update send file upload test

* Move internationalization string to correct document

* Allow for one shot blob uploads

* Remove unused helper

* Use FileUploadService

Fallback to legacy method on old server implementations.

src/Core/Models/Response/SendFileUploadDataResponse.cs

@@ -0,0 +1,12 @@
+using System;
+using Bit.Core.Enums;
+
+namespace Bit.Core.Models.Response
+{
+    public class SendFileUploadDataResponse
+    {
+        public string Url { get; set; }
+        public FileUploadType FileUploadType { get; set; }
+        public SendResponse SendResponse { get; set; }
+    }
+}