Add fuzzing by way of ClusterFuzzLite

Signed-off-by: David Korczynski <david@adalogics.com>

.clusterfuzzlite/parse_fuzzer.cpp

@@ -0,0 +1,16 @@
+
+#include <toml.hpp>
+
+#include <sstream>
+#include <string>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  std::string s(reinterpret_cast<const char *>(data), size);
+  std::istringstream iss(s);
+  try {
+    const auto ref = toml::parse(iss);
+  } catch (...) {
+  }
+
+  return 0;
+}