Tutorial for LinphoneSDK x UWP - C#

uwp/cs/05_FileTransfer/Readme.md

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+Linphone X UWP tutorial 05_FileTransfer
+========================================
+
+Learn how to send files over SIP using Linphone SDK.
+
+We added a button to send file to your peer, and we improved how messages are displayed to show 
+you more information about them and allow you to download files sent by the remote end.
+Most of the new Linphone usage are in Controls/MessageDisplay.xaml(.cs) and ChatPage.xaml(.cs) but don't
+forget to set the attribute FileTransferServer on your Core ! (see Core creation in CoreService.cs)
+
+Don't forget to install those NuGet packages :
+ - LinphoneSDK (can be found here : https://www.linphone.org/snapshots/windows/sdk/)
+ - Microsoft.NETCore.UniversalWindowsPlatform (version 6.2.12 recommended)
+ - ANGLE.WindowsStore (for video rendering, version 2.1.13 recommended)
+
+New/updated files :
+
+```
+05_FileTransfer
+└───Controls :
+│   │   MessageDisplay.xaml(.cs) : A user control to display chat bubbles with more
+│   │               information. Learn how to handle the different types of ChatMessage here.
+│   │
+│
+└───Service :
+│   │   CoreService.cs : A singleton service which contains the Linphone.Core. 
+│   │               We setup FileTransferServer during core creation now.
+│
+└───Views :
+│   │    
+│   │   ChatPage.xaml(.cs) : This is the frame displayed when you select a chat room.     
+│   │               You can now send file and the message display is improved (see MessageDisplay)
+```