fetch and pack DirectML.dll

Author: stakira

.gitignore

@@ -338,4 +338,5 @@ OpenUtau.Test/Usts/*
 *.exe
 appcast.*.xml
 *.tar.gz
-.vscode/
+.vscode/
+Microsoft.AI.DirectML

OpenUtau/OpenUtau.csproj

@@ -57,9 +57,11 @@
   </ItemGroup>
   <ItemGroup Condition="'$(RuntimeIdentifier)' == 'win-x64'">
     <None Include="..\runtimes\win-x64\native\**" CopyToOutputDirectory="PreserveNewest" LinkBase="." />
+    <None Include="..\Microsoft.AI.DirectML\bin\x64-win\DirectML.dll" CopyToOutputDirectory="PreserveNewest" LinkBase="." />
   </ItemGroup>
   <ItemGroup Condition="'$(RuntimeIdentifier)' == 'win-x86'">
     <None Include="..\runtimes\win-x86\native\**" CopyToOutputDirectory="PreserveNewest" LinkBase="." />
+    <None Include="..\Microsoft.AI.DirectML\bin\x86-win\DirectML.dll" CopyToOutputDirectory="PreserveNewest" LinkBase="." />
   </ItemGroup>
   <ItemGroup Condition="'$(RuntimeIdentifier)' == 'osx.10.14-x64'">
     <None Include="..\runtimes\osx\native\**" CopyToOutputDirectory="PreserveNewest" LinkBase="." />

appveyor.py

@@ -1,5 +1,6 @@
 import os
 import sys
+import urllib.request
 from datetime import datetime
 
 appcast_ver = os.environ.get('APPVEYOR_BUILD_VERSION')
@@ -37,6 +38,10 @@ def write_appcast(appcast_os, appcast_rid, appcast_file):
 
     os.system("del *.xml 2>&1")
 
+    urllib.request.urlretrieve("https://www.nuget.org/api/v2/package/Microsoft.AI.DirectML/1.12.0", "Microsoft.AI.DirectML.nupkg")
+    os.system("mkdir Microsoft.AI.DirectML")
+    os.system("tar -xf Microsoft.AI.DirectML.nupkg -C Microsoft.AI.DirectML")
+
     os.system("dotnet restore OpenUtau -r win-x86")
     os.system(
         "dotnet publish OpenUtau -c Release -r win-x86 --self-contained true -o bin/win-x86")