D3D12: Fix some pragma warnings for push and pop.

Author: AndrewRichards-Code

DirectX12/Buffer.h

@@ -3,15 +3,15 @@
 #include "Platform/DirectX12/Export.h"
 #include "Platform/CrossPlatform/Buffer.h"
 
-
+#pragma warning(push)
 #pragma warning(disable:4251)
 
 namespace platform
 {
 	namespace dx12
 	{
 		/// DirectX12 buffer class that can be used as index buffer and vertex buffer
-		class SIMUL_DIRECTX12_EXPORT Buffer:public platform::crossplatform::Buffer
+		class SIMUL_DIRECTX12_EXPORT Buffer : public platform::crossplatform::Buffer
 		{
 		public:
 										Buffer();
@@ -47,3 +47,4 @@ namespace platform
 	}
 };
 
+#pragma warning(pop)

DirectX12/PlatformStructuredBuffer.h

@@ -5,6 +5,7 @@
 #include "SimulDirectXHeader.h"
 #include "Heap.h"
 
+#pragma warning(push)
 #pragma warning(disable:4251)
 
 namespace platform
@@ -14,6 +15,7 @@ namespace platform
 		class EffectPass;
 		class Effect;
 		class RenderPlatform;
+
 		//! DirectX12 structured buffer class
 		class PlatformStructuredBuffer:public crossplatform::PlatformStructuredBuffer
 		{
@@ -88,3 +90,5 @@ namespace platform
 		};
 	}
 }
+
+#pragma warning(pop)