Move dependencies in 'external' directory and pdate git submodules

external/Catch2/tests/ExtraTests/X05-DeferredStaticChecks.cpp

@@ -0,0 +1,21 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+
+/**\file
+ * Checks that when `STATIC_CHECK` is deferred to runtime and fails, it
+ * does not abort the test case.
+ */
+
+#include <catch2/catch_test_macros.hpp>
+
+TEST_CASE("Deferred static checks") {
+    STATIC_CHECK(1 == 2);
+    STATIC_CHECK_FALSE(1 != 2);
+    // This last assertion must be executed too
+    CHECK(1 == 2);
+}