Adds more sample XSDs for testing (GML, SOAP-WSDL, Loc-ALTO), fixes yet more code generation bugs

.codegraph/.gitignore

@@ -0,0 +1,5 @@
+# CodeGraph data files — local to each machine, not for committing.
+# Ignore everything in .codegraph/ except this file itself, so transient
+# files (the database, daemon.pid, sockets, logs) never show up in git.
+*
+!.gitignore

GeneratedSchemaLibraries/1707_ISYBAU_XML_Schema/1707-metadaten.xsd-g.cs

@@ -1,7 +1,7 @@
 //------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated by a tool.
-//     LinqToXsd Version: 3.4.21
+//     LinqToXsd Version: 3.4.23
 //
 //     Changes to this file may cause incorrect behavior and will be lost if
 //     the code is regenerated.

GeneratedSchemaLibraries/1707_ISYBAU_XML_Schema/origin.md

@@ -0,0 +1,3 @@
+Taken from: http://www.arbeitshilfen-abwasser.de/Materialien/Beispiele/XML-Schema-Dateien-2013/1302_ISYBAU_XML_Schema.zip 
+
+Reference (in German): https://www.bfr-abwasser.de/html/A7ISYBAU_ATF_XML.html

GeneratedSchemaLibraries/ALTO/ALTO.csproj

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="alto-4-4.xsd" />
+    <EmbeddedResource Include="loc_xlink.xsd" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Remove="alto-4-4.xsd" />
+    <None Remove="loc_xlink.xsd" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\XObjectsCore\XObjectsCore.csproj">
+      <SetTargetFramework>TargetFramework=netstandard2.0</SetTargetFramework>
+    </ProjectReference>
+  </ItemGroup>
+</Project>