Refactor am services

Use the new service naming scheme.
Remove redundant casts and template specifiers in response.Push.

app/src/main/cpp/skyline/services/am/controller/IDebugFunctions.cpp

@@ -0,0 +1,6 @@
+#include "IDebugFunctions.h"
+
+namespace skyline::service::am {
+    IDebugFunctions::IDebugFunctions(const DeviceState &state, ServiceManager &manager) : BaseService(state, manager, Service::am_IDebugFunctions, "am:IDebugFunctions", {
+    }) {}
+}