ipc: Allow all trivially copyable objects to be passed directly into WriteBuffer

With the support of C++20, we can use concepts to deduce if a type is an STL container or not.

src/common/concepts.h

@@ -0,0 +1,18 @@
+// Copyright 2020 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <concepts>
+
+// Check if type is like an STL container
+template <typename T>
+concept IsSTLContainer = requires(T t) {
+    typename T::value_type;
+    // TODO(ogniK): Replace below is std::same_as<void> when MSVC supports it.
+    t.begin();
+    t.end();
+    t.data();
+    t.size();
+};