Update version and add symbol package support

Added `<IncludeSymbols>` and `<SymbolPackageFormat>` properties to `CryptoNet.csproj` to enable symbol file inclusion and specify the `snupkg` format for debugging.

Updated versioning in `Directory.Build.Props`:
- Bumped `<Version>` to `3.2.1`.
- Updated `<FileVersion>` to `3.2.1.0`.
- Updated `<AssemblyVersion>` to `3.2.1.0`.

These changes introduce minor improvements while maintaining backward compatibility.

Author: maythamfahmi

CryptoNet/CryptoNet.csproj

@@ -26,7 +26,9 @@
     <Copyright>Copyright © 2020</Copyright>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
+    <IncludeSymbols>true</IncludeSymbols>
     <DebugType>embedded</DebugType>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
     <_SkipUpgradeNetAnalyzersNuGetWarning>true</_SkipUpgradeNetAnalyzersNuGetWarning>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>

Directory.Build.Props

@@ -3,9 +3,9 @@
   <PropertyGroup>
     <Authors>Maytham Fahmi and Contributors</Authors>
     <Copyright>All Rights Reserved</Copyright>
-    <Version>3.2.0</Version>
-    <FileVersion>3.2.0.0</FileVersion>
-    <AssemblyVersion>3.2.0.0</AssemblyVersion>
+    <Version>3.2.1</Version>
+    <FileVersion>3.2.1.0</FileVersion>
+    <AssemblyVersion>3.2.1.0</AssemblyVersion>
   </PropertyGroup>
 
   <PropertyGroup>