Add resource tracking output and command buffer recycling

src/gpu/vk/GrVkBuffer.h

Index: src/gpu/vk/GrVkBuffer.h
diff --git a/src/gpu/vk/GrVkBuffer.h b/src/gpu/vk/GrVkBuffer.h
index 985b586336107f9ae57cea1ccf835b35ad60dbf1..bb053ccce0df332dbdce0ef4e551742ebb077ea7 100644
--- a/src/gpu/vk/GrVkBuffer.h
+++ b/src/gpu/vk/GrVkBuffer.h
@@ -57,6 +57,11 @@ protected:
         Resource(VkBuffer buf, const GrVkAlloc& alloc, Type type)
             : INHERITED(), fBuffer(buf), fAlloc(alloc), fType(type) {}
 
+#ifdef SK_TRACE_VK_RESOURCES
+        void dumpInfo() const override {
+            SkDebugf("GrVkBuffer: %d (%d refs)\n", fBuffer, this->getRefCnt());
+        }
+#endif
         VkBuffer           fBuffer;
         GrVkAlloc          fAlloc;
         Type               fType;