Move EnableUnsafeBinaryFormatterSerialization to global props

+ fix issue of wrong condition in global props

Author: alex-kulakov

Directory.Build.props

@@ -39,10 +39,13 @@
 
     <!-- Disable "BinaryFormatter is obsolete" warnings for test projects -->
     <NoWarn Condition="$(MSBuildProjectName.Contains('Tests')) == 'true'">$(NoWarn);SYSLIB0011</NoWarn>
+    <!-- Enable Usage of BinaryFormatter in test projects -->
+    <EnableUnsafeBinaryFormatterSerialization
+      Condition="'$(TargetFramework)'=='net8.0' AND $(MSBuildProjectName.Contains('Tests')) == 'true'">true</EnableUnsafeBinaryFormatterSerialization>
   </PropertyGroup>
 
   <!-- Debug-NET8, Release-NET8 are mostly for development convenience -->
-  <PropertyGroup Condition = "$(Configuration.Contains('NET7')) == 'true'">
+  <PropertyGroup Condition = "$(Configuration.Contains('NET8')) == 'true'">
     <!-- hard binding to net8, no property and env variable allowed-->
     <TargetFrameworks>net8.0</TargetFrameworks>
   </PropertyGroup>

Orm/Xtensive.Orm.Tests/Xtensive.Orm.Tests.csproj

@@ -10,7 +10,6 @@
     <AssemblyOriginatorKeyFile>$(OrmKeyFile)</AssemblyOriginatorKeyFile>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <WarningLevel>2</WarningLevel>
-    <EnableUnsafeBinaryFormatterSerialization Condition="'$(TargetFramework)'=='net8.0'">true</EnableUnsafeBinaryFormatterSerialization>
   </PropertyGroup>
   <Import Project="$(SolutionDir)MSBuild\DataObjects.Net.InternalBuild.targets" />
   <ItemGroup Condition="'$(TargetFramework)'=='net6.0'">