Add catch blocks in example GEMM apps to enable better error handling (Issue: 1928) (#2234)

* added catch statements to examples

* clang format

[ROCm/composable_kernel commit: c52649ad57]

example/ck_tile/03_gemm/universal_gemm.cpp

@@ -345,7 +345,7 @@ int main(int argc, char* argv[])
 {
     try
     {
-        run_gemm_example(argc, argv);
+        return !run_gemm_example(argc, argv);
     }
     catch(const std::runtime_error& e)
     {