Add fuzz test for QueryParser

fuzzing/QueryParser.cpp

@@ -0,0 +1,13 @@
+#include "../src/QueryParser.h"
+
+#include <string>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+
+    std::string modifiableInput((char *) data, size);
+
+    uWS::getDecodedQueryValue("", modifiableInput);
+    uWS::getDecodedQueryValue("hello", modifiableInput);
+
+    return 0;
+}