cleanup, timermanager in App is a dependency that takes timers again.

App now adds already constructed Timers
Timer is now an Invoker that takes a weak_ptr to a steppable with a
request()rather than a bool callback.
should eventually be changed to composition

src/timer.cpp

@@ -1,37 +1,31 @@
 #include <chrono>
-#include <functional>
-#include <utility>
+#include <iostream>
 
 #include "timer.hpp"
 
 using namespace std::chrono;
 using namespace std;
 
-Timer::Timer(size_t triggeramount, function<bool()> myaction, milliseconds triggerinterval)
+Timer::Timer(size_t triggeramount, milliseconds triggerinterval)
 	:triggeramount(triggeramount)
-	, callback(myaction)
 	, triggerinterval(triggerinterval) {}
 
 void Timer::add_time(milliseconds deltatime) {
 	accumulator += deltatime;
 	if (accumulator >= triggerinterval) {
 		accumulator -= triggerinterval;
+		cout << "request in timer\n";
 		request();
 		triggercount++;
-		if (!isinfinite && triggercount >= triggeramount){
+		if (triggeramount != 0 && triggercount >= triggeramount){
 			isexpired=true;
 		}
 	}
-};
-
-void Timer::request() {
-		callback();	
 }
 
-void TimerManager::add_timer(size_t triggeramount, function<bool()> myaction, std::chrono::milliseconds triggerinterval) {
-	Timer mynewtimer(triggeramount, myaction, triggerinterval);
-	timers.push_back(std::move(mynewtimer));
-};
+void TimerManager::add_timer(Timer timer){
+	timers.push_back(timer);
+}
 
 void TimerManager::update_timers() {
 	steady_clock::time_point currenttime =