initial import from picomap firmware

include/test_handlers.h

@@ -0,0 +1,7 @@
+#pragma once
+#include <optional>
+#include "dispatch.h"
+#include "wire.h"
+
+std::optional<ResponseListTests> handle_list_tests(const responder& resp, const RequestListTests&);
+std::optional<ResponseTest> handle_test(const responder& resp, const RequestTest&);