uwp: update project files for smb client

Author: cscd98

pkg/msvc-uwp/RetroArch-msvcUWP/Package.appxmanifest

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities" IgnorableNamespaces="uap mp rescap">
   <Identity Name="1e4cf179-f3c2-404f-b9f3-cb2070a5aad8" Publisher="CN=libretro" Version="1.22.2.0" />
   <mp:PhoneIdentity PhoneProductId="1e4cf179-f3c2-404f-b9f3-cb2070a5aad8" PhonePublisherId="00000000-0000-0000-0000-000000000000" />
@@ -32,6 +32,7 @@
   <Capabilities>
     <Capability Name="internetClient" />
     <Capability Name="internetClientServer" />
+    <Capability Name="privateNetworkClientServer"/>
     <rescap:Capability Name="runFullTrust"/>
     <rescap:Capability Name="broadFileSystemAccess" />
     <rescap:Capability Name="expandedResources" />