Squashed 'external/ircolib/' changes from cf68f4c..ec06dab

ec06dab logging

git-subtree-dir: external/ircolib
git-subtree-split: ec06dab96452fb0d3b4c93e71dbdf9869e39f7e5

log.hpp

@@ -0,0 +1,16 @@
+#pragma once
+#include <print>
+
+namespace ircolib {
+template <typename... Args>
+void panic(std::format_string<Args...> fmt, Args &&...args) {
+    std::print("[FATAL] ");
+    std::println(fmt, std::forward<Args>(args)...);
+    exit(1);
+}
+template <typename... Args>
+void warn(std::format_string<Args...> fmt, Args &&...args) {
+    std::print("[WARN] ");
+    std::println(fmt, std::forward<Args>(args)...);
+}
+} // namespace ircolib