Add aspnetcore nullable patch

Author: MichaelSimons

patches/aspnetcore/0020-Disable-nullable-warnings.patch

@@ -0,0 +1,28 @@
+From c70232268e76633ee9bb1c5c384890bdc46c90e5 Mon Sep 17 00:00:00 2001
+From: Michael Simons <[email protected]>
+Date: Fri, 2 Apr 2021 16:18:27 +0000
+Subject: [PATCH] Disable nullable warnings
+
+---
+ Directory.Build.props | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Directory.Build.props b/Directory.Build.props
+index 1057387..f029e23 100644
+--- a/Directory.Build.props
++++ b/Directory.Build.props
+@@ -107,9 +107,9 @@
+ 
+   <!-- Warnings and errors -->
+   <PropertyGroup>
+-    <!-- Don't warn on CA1416 since source-build TFM changes
++    <!-- Don't warn since source-build TFM changes
+         are causing the warning to occur -->
+-    <NoWarn>$(NoWarn);CA1416</NoWarn>
++    <NoWarn>$(NoWarn);CA1416;CS8600;CS8618;CS8766</NoWarn>
+     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+     <!-- Don't make missing XML docs a fatal build error, but still surface so we have visibility into undocumented APIs. -->
+     <WarningsNotAsErrors>$(WarningsNotAsErrors);CS1591</WarningsNotAsErrors>
+-- 
+1.8.3.1
+