[csharp] Change creation script from PowerShell to Makefile

Author: solvingproblemswithtechnology

examples/csharp/Makefile

@@ -0,0 +1,16 @@
+examples/csharp/create:
+
+ifndef ExampleName
+	$(error ExampleName is not set)
+endif
+
+ifndef ContextName
+	$(error ContextName is not set)
+endif
+
+	mkdir $(ExampleName)
+	dotnet new sln -n $(ExampleName) -o "./$(ExampleName)"
+	dotnet new classlib -n $(ContextName) -o "./$(ExampleName)/src/$(ContextName)" --framework net5.0
+	dotnet sln "./$(ExampleName)/$(ExampleName).sln" add "./$(ExampleName)/src/$(ContextName)/$(ContextName).csproj" -s "src"
+	dotnet new xunit -n "$(ContextName).Tests" -o "./$(ExampleName)/test/$(ContextName).Tests" --framework net5.0
+	dotnet sln "./$(ExampleName)/$(ExampleName).sln" add "./$(ExampleName)/test/$(ContextName).Tests/$(ContextName).Tests.csproj" -s "test"