pull in fuzzers, add CI scripts later

Conflicts:
	ChangeLog

fuzz/tokener_parse_ex_fuzzer.cc

@@ -0,0 +1,13 @@
+#include <stdint.h>
+
+#include <json.h>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  const char *data1 = reinterpret_cast<const char *>(data);
+  json_tokener *tok = json_tokener_new();
+  json_object *obj = json_tokener_parse_ex(tok, data1, size);
+
+  json_object_put(obj);
+  json_tokener_free(tok);
+  return 0;
+}