add platform::get_executable_path (#638)

src/util/platform.hpp

@@ -5,13 +5,17 @@
 
 namespace platform {
     void configure_encoding();
-    /// @return environment locale in ISO format ll_CC
+    /// @brief Get Environment locale in ISO format ll_CC
     std::string detect_locale();
     /// @brief Open folder using system file manager asynchronously
     /// @param folder target folder
     void open_folder(const std::filesystem::path& folder);
-    /// Makes the current thread sleep for the specified amount of milliseconds.
+    /// @brief Makes the current thread sleep for the specified amount of milliseconds.
     void sleep(size_t millis);
+    /// @brief Get current process id 
     int get_process_id();
+    /// @brief Get current process running executable path  
+    std::filesystem::path get_executable_path();
+    /// @brief Open URL in web browser 
     bool open_url(const std::string& url);
 }