Imazen.WebP: Fixed build config for Release mode to permit unsafe blocks

Author: lilith

Diff for: Imazen.WebP/Imazen.WebP.csproj

@@ -33,6 +33,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <DocumentationFile>bin\Release\Imazen.WebP.XML</DocumentationFile>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />