Fixed OnResourceDestroy callback not called by the destructor

Former-commit-id: 8b961101f88343ddd3bb382d2c333052efb03164

src/Nazara/Renderer/Material.cpp

@@ -43,6 +43,11 @@ NzMaterial::NzMaterial(NzMaterial&& material)
 			unit.program.Reset();
 }
 
+NzMaterial::~NzMaterial()
+{
+	NotifyDestroy();
+}
+
 void NzMaterial::Apply(const NzShaderProgram* program) const
 {
 	int alphaThresholdLocation = program->GetUniformLocation(nzShaderUniform_MaterialAlphaThreshold);

src/Nazara/Utility/IndexBuffer.cpp

@@ -41,6 +41,11 @@ m_startOffset(indexBuffer.m_startOffset)
 {
 }
 
+NzIndexBuffer::~NzIndexBuffer()
+{
+	NotifyDestroy();
+}
+
 unsigned int NzIndexBuffer::ComputeCacheMissCount() const
 {
 	NzIndexMapper mapper(this);

src/Nazara/Utility/SkeletalMesh.cpp

@@ -182,6 +182,8 @@ void NzSkeletalMesh::Destroy()
 {
 	if (m_impl)
 	{
+		NotifyDestroy();
+
 		delete m_impl;
 		m_impl = nullptr;
 	}

src/Nazara/Utility/StaticMesh.cpp

@@ -40,14 +40,16 @@ bool NzStaticMesh::Create(NzVertexBuffer* vertexBuffer)
 
 void NzStaticMesh::Destroy()
 {
-	if (m_indexBuffer)
-	{
-		m_indexBuffer->RemoveResourceListener(this);
-		m_indexBuffer = nullptr;
-	}
-
 	if (m_vertexBuffer)
 	{
+		NotifyDestroy();
+
+		if (m_indexBuffer)
+		{
+			m_indexBuffer->RemoveResourceListener(this);
+			m_indexBuffer = nullptr;
+		}
+
 		m_vertexBuffer->RemoveResourceListener(this);
 		m_vertexBuffer = nullptr;
 	}

src/Nazara/Utility/VertexBuffer.cpp

@@ -36,6 +36,11 @@ m_vertexCount(vertexBuffer.m_vertexCount)
 {
 }
 
+NzVertexBuffer::~NzVertexBuffer()
+{
+	NotifyDestroy();
+}
+
 bool NzVertexBuffer::Fill(const void* data, unsigned int startVertex, unsigned int length, bool forceDiscard)
 {
 	unsigned int stride = m_vertexDeclaration->GetStride();

src/Nazara/Utility/VertexDeclaration.cpp

@@ -53,6 +53,11 @@ m_stride(declaration.m_stride)
 	std::memcpy(m_attributes, declaration.m_attributes, sizeof(Attribute)*(nzAttributeUsage_Max+1));
 }
 
+NzVertexDeclaration::~NzVertexDeclaration()
+{
+	NotifyDestroy();
+}
+
 void NzVertexDeclaration::DisableAttribute(nzAttributeUsage usage)
 {
 	#ifdef NAZARA_DEBUG