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/Maestro/Code/Tests/MaestroTest.cpp

@@ -8,7 +8,6 @@
 
 #include <AzTest/AzTest.h>
 #include <AzCore/UnitTest/UnitTest.h>
-#include <Mocks/ITimerMock.h>
 #include <Mocks/ICryPakMock.h>
 #include <Mocks/IConsoleMock.h>
 #include <AzCore/Memory/OSAllocator.h>
@@ -33,7 +32,6 @@ protected:
     {
         AZ_TEST_CLASS_ALLOCATOR(MockHolder);
 
-        NiceMock<TimerMock> timer;
         NiceMock<CryPakMock> pak;
         NiceMock<ConsoleMock> console;
     };
@@ -51,7 +49,6 @@ protected:
         // manage their lifetime, so this solution manages the lifetime
         // and ordering via the heap.
         m_mocks = new MockHolder();
-        m_stubEnv.pTimer = &m_mocks->timer;
         m_stubEnv.pCryPak = &m_mocks->pak;
         m_stubEnv.pConsole = &m_mocks->console;
         gEnv = &m_stubEnv;