Support comparing wgpu objects by comparing underlying pointers

libs/wgpu/include/psemek/wgpu/detail/object.hpp

@@ -55,6 +55,11 @@ namespace psemek::wgpu::detail
 
 		explicit operator bool() const { return ptr_ != nullptr; }
 
+		friend bool operator == (object const & o1, object const & o2)
+		{
+			return o1.ptr_ == o2.ptr_;
+		}
+
 	protected:
 		object(void * ptr)
 			: ptr_(ptr)