[dxvk] Make DxvkBuffer destructor explicit

Prevents compiler from inlining massive amounts of code where it's
not needed. This is more consistent with the other classes as well.

src/dxvk/dxvk_buffer.cpp

@@ -21,6 +21,11 @@ namespace dxvk {
   }
 
 
+  DxvkBuffer::~DxvkBuffer() {
+    
+  }
+  
+  
   DxvkPhysicalBufferSlice DxvkBuffer::allocPhysicalSlice() {
     std::unique_lock<sync::Spinlock> freeLock(m_freeMutex);
     

src/dxvk/dxvk_buffer.h

@@ -23,6 +23,8 @@ namespace dxvk {
       const DxvkBufferCreateInfo& createInfo,
             VkMemoryPropertyFlags memoryType);
     
+    ~DxvkBuffer();
+    
     /**
      * \brief Buffer properties
      * \returns Buffer properties