Removal and Replacement of the CryTimer (gEnv->pTimer) (#5409)

Replaced and removed the CryTimer (gEnv->pTimer). The new TimeSystem is a merger of the current time functionality found in the engine.

* Rename TimeSystemComponent.h/.cpp to TimeSystem.h/.cpp
* Adding New TimeSystem
* remove old timer cvars
* small improvements to the time system.
 - updated parts to use the time conversion functions.
 - in AdvanceTickDeltaTimes applying t_simulationTickScale is now uses doubles instead of floats.
* Replace gEnv->pTimer / ITimer usages with TimeSystem
* Updating usages of AZ::TimeMs{ 0 } and AZ::TimeUs{ 0 } to AZ::Time::ZeroTimeMs and AZ::Time::ZeroTimeUs
* red code the CryTimer
* using TimeUs instead of TimeMs is some cases + updating usages of old cvars to new

Signed-off-by: amzn-sean <75276488+amzn-sean@users.noreply.github.com>

Gems/LyShine/Code/Source/Animation/UiAnimationSystem.cpp

@@ -22,7 +22,6 @@
 #include <ISystem.h>
 #include <ILog.h>
 #include <IConsole.h>
-#include <ITimer.h>
 #include <IRenderer.h>
 
 //////////////////////////////////////////////////////////////////////////
@@ -97,7 +96,7 @@ UiAnimationSystem::UiAnimationSystem()
     m_pCallback = NULL;
     m_bPaused = false;
     m_sequenceStopBehavior = eSSB_GotoEndTime;
-    m_lastUpdateTime.SetValue(0);
+    m_lastUpdateTime = AZ::Time::ZeroTimeUs;
 
     m_nextSequenceId = 1;
 }
@@ -793,7 +792,7 @@ void UiAnimationSystem::UpdateInternal(const float deltaTime, const bool bPreUpd
     }
 
     // don't update more than once if dt==0.0
-    CTimeValue curTime = gEnv->pTimer->GetFrameStartTime();
+    const AZ::TimeUs curTime = AZ::GetElapsedTimeUs();
     if (deltaTime == 0.0f && curTime == m_lastUpdateTime && !gEnv->IsEditor())
     {
         return;