[ArPow] Resolve dotnet/linker Mono.Cecil prebuilt with patch (#12372)

* add wip Mono.Cecil patches

* remove unnecessary linker patch

* add link to linker PR in patch

src/SourceBuild/tarball/patches/linker/0001-fix-tlens-Mono.Cecil-reference.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Logan Bussell <36081148+lbussell@users.noreply.github.com>
+Date: Wed, 13 Oct 2021 18:26:09 +0000
+Subject: [PATCH] fix tlens Mono.Cecil reference
+
+Pull request for applying the patch: https://github.com/dotnet/linker/pull/2317
+---
+ src/tlens/tlens.csproj | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/tlens/tlens.csproj b/src/tlens/tlens.csproj
+index 92b3754..e17f9fb 100644
+--- a/src/tlens/tlens.csproj
++++ b/src/tlens/tlens.csproj
+@@ -10,7 +10,8 @@
+   </ItemGroup>
+ 
+   <ItemGroup>
+-    <PackageReference Include="Mono.Cecil" Version="$(MonoCecilVersion)" />
++    <PackageReference Condition="'$(UseCecilPackage)' == 'true'" Include="Mono.Cecil" Version="$(MonoCecilVersion)" />
++    <ProjectReference Condition="'$(UseCecilPackage)' != 'true'" Include="../../external/cecil/Mono.Cecil.csproj" />
+   </ItemGroup>
+ 
+ </Project>