add simple host program that loads a wasm module using the wamr runtime

wasm-base/examples/test.c

@@ -7,6 +7,7 @@ int main(int argc, char **argv) {
   char *buf;
 
   printf("Hello world!\n");
+  printf("Got %d args!\n", argc);
 
   buf = malloc(1024);
   if (!buf) {