Make date "At"-type check more robust

Previously the "At" check could skip the desired time window if e.g another
macro was performing a long wait wait action or condition was taking
a long time to check.
The date condition will now take into consideration when the last time
was the condition checked a date instead of simply applying a fixed
window of "switcher->interval".

src/headers/macro-condition-date.hpp

@@ -48,8 +48,8 @@ public:
 	bool _dayOfWeekCheck = false;
 
 private:
-	bool checkDayOfWeek();
-	bool checkRegularDate();
+	bool CheckDayOfWeek(int64_t);
+	bool CheckRegularDate(int64_t);
 
 	static bool _registered;
 	static const std::string id;

src/headers/macro.hpp

@@ -78,6 +78,7 @@ public:
 	bool PerformActions(bool forceParallel = false,
 			    bool ignorePause = false);
 	bool Matched() { return _matched; }
+	int64_t MsSinceLastCheck();
 	std::string Name() { return _name; }
 	void SetName(const std::string &name);
 	void SetRunInParallel(bool parallel) { _runInParallel = parallel; }
@@ -139,6 +140,8 @@ private:
 	bool _wasExecutedRecently = false;
 	bool _onChangeTriggered = false;
 
+	std::chrono::high_resolution_clock::time_point _lastCheckTime{};
+
 	bool _die = false;
 	bool _stop = false;
 	bool _done = true;