Moved general example

example/custom/general/src/main.py

@@ -0,0 +1,17 @@
+from application import Application
+from cpl.application import ApplicationBuilder
+from test_extension import TestExtension
+from startup import Startup
+from test_startup_extension import TestStartupExtension
+
+
+def main():
+    app_builder = ApplicationBuilder(Application)
+    app_builder.with_startup(Startup)
+    app_builder.with_extension(TestStartupExtension)
+    app_builder.with_extension(TestExtension)
+    app_builder.build().run()
+
+
+if __name__ == "__main__":
+    main()