Add server side accounting for blend factor

Signed-off-by: puvvadar <puvvadar@amazon.com>

Gems/Multiplayer/Code/Include/Multiplayer/IMultiplayer.h

@@ -121,6 +121,8 @@ namespace Multiplayer
         //! @return the current server time in milliseconds
         virtual AZ::TimeMs GetCurrentHostTimeMs() const = 0;
 
+        virtual float GetCurrentBlendFactor() const = 0;
+
         //! Returns the network time instance bound to this multiplayer instance.
         //! @return pointer to the network time instance bound to this multiplayer instance
         virtual INetworkTime* GetNetworkTime() = 0;

Gems/Multiplayer/Code/Include/Multiplayer/NetworkInput/NetworkInput.h

@@ -44,6 +44,9 @@ namespace Multiplayer
         AZ::TimeMs GetHostTimeMs() const;
         AZ::TimeMs& ModifyHostTimeMs();
 
+        void SetHostBlendFactor(float hostBlendFactor);
+        float GetHostBlendFactor() const;
+
         void AttachNetBindComponent(NetBindComponent* netBindComponent);
 
         bool Serialize(AzNetworking::ISerializer& serializer);
@@ -72,6 +75,7 @@ namespace Multiplayer
         ClientInputId m_inputId = ClientInputId{ 0 };
         HostFrameId m_hostFrameId = InvalidHostFrameId;
         AZ::TimeMs m_hostTimeMs = AZ::TimeMs{ 0 };
+        float m_hostBlendFactor = 0.f;
         ConstNetworkEntityHandle m_owner;
         bool m_wasAttached = false;
     };