Updated to .net5.0

Source/Framework/Framework.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
 	<Platforms>x64</Platforms>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <LangVersion>8.0</LangVersion>

Source/Framework/GameMath/AxisAlignedBox.cs

@@ -92,7 +92,7 @@ namespace Framework.GameMath
         /// </summary> 
         /// <param name="info">The <see cref="SerializationInfo"/> to populate with data. </param> 
         /// <param name="context">The destination (see <see cref="StreamingContext"/>) for this serialization.</param> 
-        [SecurityPermissionAttribute(SecurityAction.Demand, SerializationFormatter = true)]
+        //[SecurityPermissionAttribute(SecurityAction.Demand, SerializationFormatter = true)]
         public void GetObjectData(SerializationInfo info, StreamingContext context)
         {
             info.AddValue("Max", _hi, typeof(Vector3));

Source/Framework/GameMath/Plane.cs

@@ -174,7 +174,7 @@ namespace Framework.GameMath
         /// </summary>
         /// <param name="info">The <see cref="SerializationInfo"/> to populate with data. </param>
         /// <param name="context">The destination (see <see cref="StreamingContext"/>) for this serialization.</param>
-        [SecurityPermissionAttribute(SecurityAction.Demand, SerializationFormatter = true)]
+        //[SecurityPermissionAttribute(SecurityAction.Demand, SerializationFormatter = true)]
         public void GetObjectData(SerializationInfo info, StreamingContext context)
         {
             info.AddValue("Normal", _normal, typeof(Vector3));