add gtest, temp disable swig

(cherry picked from commit 4008d163d77f503e6acbd7ddc1d87ac6d479c897)

test/main.cpp

@@ -0,0 +1,7 @@
+#include <gtest/gtest.h>
+
+int main(int argc, char **argv) {
+  testing::InitGoogleTest(&argc, argv);
+  std::cout << "init test \n";
+  return RUN_ALL_TESTS();
+}

test/test_example.cpp

@@ -0,0 +1,7 @@
+#include "gtest/gtest.h"
+
+TEST(test_example, sample_test)
+{
+  printf("blabla \n" );
+    EXPECT_EQ(1, 1);
+}