added a basic hyprland/language module

include/modules/hyprland/language.hpp

@@ -0,0 +1,28 @@
+#include <fmt/format.h>
+
+#include "ALabel.hpp"
+#include "bar.hpp"
+#include "modules/hyprland/backend.hpp"
+#include "util/json.hpp"
+
+namespace waybar::modules::hyprland {
+
+class Language : public waybar::ALabel {
+public:
+  Language(const std::string&, const waybar::Bar&, const Json::Value&);
+  ~Language() = default;
+
+  auto update() -> void;
+
+private:
+  void onEvent(const std::string&);
+
+  void initLanguage();
+
+  std::mutex mutex_;
+  const Bar& bar_;
+  util::JsonParser parser_;
+  std::string layoutName_;
+};
+
+}