utils: SWTimer add time_now to cb params

src/utils.cc

@@ -110,7 +110,7 @@ namespace Heck {
             time_last_exec_ = time_now;
             if (callback_) {
                 //todo: constexpr if metrics
-                callback_();
+                callback_(time_now);
             }
             return true;
         }

src/utils.hh

@@ -16,7 +16,7 @@ namespace Heck {
 namespace Heck {
     class SWTimer {
     public:
-        using Callback = std::function<void(void)>;
+        using Callback = std::function<void(u32 time)>;
 
         void set_period(u32 time_units);
         void set_callback(const Callback& cb);