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/sortui.cpp

@@ -14,6 +14,7 @@
 #include "core/app.hpp"
 #include "sessions.hpp"
 #include "sorters.hpp"
+#include "timer.hpp"
 
 using namespace std::chrono;
 using namespace std;
@@ -28,11 +29,16 @@ int main() {
 	auto myinput2 = make_shared<SortInput>("arr2", dataprovider());
 
 	auto myviewsession = make_unique<ViewSession>();
-
+	auto mytimermanager = make_unique<TimerManager>();
+	
 	//create app with initialized dependencies
-	App myapp(std::move(myviewsession));
+	App myapp(std::move(myviewsession),std::move(mytimermanager));
+
 	//add and connect data
-	myapp.setup_session(myinput, "bsort");
+	Timer timer(0, chrono::milliseconds(250));
+	myapp.timermanager->timers.push_back(timer);
+	myapp.add_sort(myinput, "bsort", myapp.timermanager->timers.back());
+
 	//actually start the app
 	myapp.run();
 }