move VK source files to up-level folder

inc/hgl/graph/VKSampler.h

@@ -0,0 +1,31 @@
+#ifndef HGL_GRAPH_VULKAN_SAMPLER_INCLUDE
+#define HGL_GRAPH_VULKAN_SAMPLER_INCLUDE
+
+#include<hgl/graph/VK.h>
+VK_NAMESPACE_BEGIN
+class Device;
+
+class Sampler
+{
+    VkDevice device;
+    VkSampler sampler;
+
+protected:
+
+    friend class Device;
+
+    Sampler(VkDevice dev,VkSampler s)
+    {
+        device=dev;
+        sampler=s;
+    }
+
+public:
+
+    ~Sampler();
+
+    operator VkSampler(){return sampler;}
+    operator const VkSampler()const{return sampler;}
+};//class Sampler
+VK_NAMESPACE_END
+#endif//HGL_GRAPH_VULKAN_SAMPLER_INCLUDE