[API] Methods for getting more information on quest timers.

[KayenEQ]

Following methods allow you to obtain more information about the status of your quest timers.

PERL

quest::hastimer(timer name) //bool for if a quest timer is currently active
quest::getremainingtimeMS(timer name) //Returns how much time is remaining on a quest timer in MS
quest::gettimerdurationMS(timer name) //Returns total duration of a quest timer in MS

LUA

bool lua_has_timer(const char *timer) {
	return quest_manager.hastimer(timer);
}

uint32 lua_get_remaining_time(const char *timer) {
	return quest_manager.getremainingtimeMS(timer);
}

uint32 lua_get_timer_duration(const char *timer) {
	return quest_manager.gettimerdurationMS(timer);
}

[Akkadius]

The verbosity on this code can be cut down rather significantly and use references

	for (auto & cur : QTimerList) {
		if (cur.mob && cur.mob == owner && cur.name == timer_name) {
			if (cur.Timer_.Enabled()) {
				return true;
			}
		}
	}

[Akkadius]

Overall looks good outside of KK's comments being addressed.

I would have used std::string C++ strings versus old C style pointers, makes things a bit easier to work in general with but its fine for this change