Import source to librtti

Summary:

- Import initial source

Test Plan:
NA

testsuite/test.c

@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <unity/unity.h>
+
+void setUp(void)
+{
+    printf("\n");
+    return;
+}
+
+void tearDown(void)
+{
+    printf("\n");
+    return;
+}
+
+extern void test_iter(void);
+
+#define TEST(x) x()
+
+int main(int argc, char* argv[])
+{
+    UNITY_BEGIN();
+
+    TEST(test_iter);
+    
+    return UNITY_END();
+}