Add external level to content pipeline

Author: IrishBruse

LDtk.Example/Content/Content.mgcb

@@ -60,3 +60,13 @@
 /processor:LDtkFileProcessor
 /build:World.ldtk
 
+#begin World/Level_0.ldtkl
+/importer:LDtkLevelImporter
+/processor:LDtkLevelProcessor
+/build:World/Level_0.ldtkl
+
+#begin World/Level_1.ldtkl
+/importer:LDtkLevelImporter
+/processor:LDtkLevelProcessor
+/build:World/Level_1.ldtkl
+

LDtk.Example/LDtk.Example.csproj

@@ -18,7 +18,7 @@
     <Target Name="LDtkCodegen" BeforeTargets="BeforeBuild">
         <Exec Command="dotnet build ..\LDtk.Codegen\LDtk.Codegen.csproj" />
         <Exec Command="dotnet ..\LDtk.Codegen\bin\Debug\net6.0\LDtk.Codegen.dll -- -i Content/World.ldtk --FileNameInNamespace --PointAsVector2" />
-        <Exec Command="dotnet ..\LDtk.Codegen\bin\Debug\net6.0\LDtk.Codegen.dll -- -i Content/TestWorld.ldtk --FileNameInNamespace" />
+        <Exec Command="dotnet ..\LDtk.Codegen\bin\Debug\net6.0\LDtk.Codegen.dll -- -i Content/TestWorld.ldtk" />
     </Target>
 
     <ItemGroup>