Add NvCloth dependency

Source/ThirdParty/NvCloth/PhaseConfig.h

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+// This code contains NVIDIA Confidential Information and is disclosed to you
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+//
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+// This code supersedes and replaces all information previously supplied.
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+//
+// Copyright (c) 2008-2020 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
+
+#pragma once
+
+#include <foundation/Px.h>
+
+namespace nv
+{
+namespace cloth
+{
+
+struct PhaseConfig
+{
+	PhaseConfig(uint16_t index = uint16_t(-1))
+		: mStiffness(1.0f)
+		, mStiffnessMultiplier(1.0f)
+		, mCompressionLimit(1.0f)
+		, mStretchLimit(1.0f)
+		, mPhaseIndex(index)
+		, mPadding(0xffff)
+	{
+	}
+
+	//These 4 floats need to be in order as they are loaded in to simd vectors in the solver
+	float mStiffness; // target convergence rate per iteration (1/solverFrequency)
+	float mStiffnessMultiplier;
+	float mCompressionLimit;
+	float mStretchLimit;
+
+	uint16_t mPhaseIndex;
+	uint16_t mPadding;
+};
+
+} // namespace cloth
+} // namespace nv