added more target frameworks

Author: stephanstapel

ZUGFeRD/ZUGFeRD.csproj

@@ -1,36 +1,37 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net461;net480</TargetFrameworks>
-    <Version>12.7.0</Version>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;net461;net480;net8.0</TargetFrameworks>
+    <Version>12.8.0</Version>
     <Authors>Stephan Stapel</Authors>
     <Company>s2 industries</Company>
-    <Description>ZUGFeRD and it's successor Factur-X/ XRechnung are initiatives from German (respectively European) government to foster electronic invoices.
-It is based on using PDF/A-3 to store invoices along with embedded xml descriptor for easy processing.
-A special favor is the so-called XRechnung which is also supported by this library.
-
-This library allows to create these xml descriptors in an easy way.
-
-To help developing the library, please become a sponsor:
+    <Description>ZUGFeRD and it's successor Factur-X/ XRechnung are initiatives from German (respectively European) government to foster electronic invoices.
+It is based on using PDF/A-3 to store invoices along with embedded xml descriptor for easy processing.
+A special favor is the so-called XRechnung which is also supported by this library.
+
+This library allows to create these xml descriptors in an easy way.
+
+To help developing the library, please become a sponsor:
 https://github.com/sponsors/stephanstapel
 
 You find the release notes here:
-https://github.com/stephanstapel/ZUGFeRD-csharp/releases
-
-Find more about the library here:
+https://github.com/stephanstapel/ZUGFeRD-csharp/releases
+
+Find more about the library here:
 https://github.com/stephanstapel/ZUGFeRD-csharp</Description>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/stephanstapel/ZUGFeRD-csharp/</PackageProjectUrl>
     <PackageTags>zugferd xml</PackageTags>
     <Copyright>Stephan Stapel, s2 industries, 2023</Copyright>
-    <AssemblyVersion>12.7.0</AssemblyVersion>
+    <AssemblyVersion>12.8.0</AssemblyVersion>
     <AssemblyTrademark>http://www.s2-industries.com</AssemblyTrademark>
     <FileVersion>12.7.0</FileVersion>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <AssemblyName>s2industries.ZUGFeRD</AssemblyName>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>ZUGFeRD.snk</AssemblyOriginatorKeyFile>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
-    <PackageReleaseNotes>12.7.0: Support for EReporting, bugfixes
+    <PackageReleaseNotes>12.8.0: Added more targets
+12.7.0: Support for EReporting, bugfixes
 12.6.0: XRechnung 3 enthancements, refactoring
 12.5.0: various bugfixes
 12.4.0: additional ElectronicAddressSchemeIdentifiers