Switch sd_event loops to sdeventplus

This change is mostly focused around plumbing the sdeventplus::Event
object everywhere and using the member functions provided for the event.
No migration to the timer utility is performed yet.

Change-Id: I912ab82bc081239d3b7c3cf7c5caca6742ef9c87
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/control/manager.cpp b/control/manager.cpp
index 1078473..bc6b18e 100644
--- a/control/manager.cpp
+++ b/control/manager.cpp
@@ -75,7 +75,7 @@
 
 //Note: Future code will check 'mode' before starting control algorithm
 Manager::Manager(sdbusplus::bus::bus& bus,
-                 phosphor::fan::event::EventPtr& events,
+                 const sdeventplus::Event& event,
                  Mode mode) :
     _bus(bus)
 {
@@ -99,7 +99,7 @@
             for (auto& z : zones)
             {
                 _zones.emplace(std::get<zoneNumPos>(z),
-                               std::make_unique<Zone>(mode, _bus, events, z));
+                               std::make_unique<Zone>(mode, _bus, event, z));
             }
 
             break;