add enum operators for some importrant flags

Author: Erfan-Ahmadi

include/nbl/asset/IBuffer.h

@@ -62,6 +62,8 @@ class NBL_API IBuffer : public core::IBuffer, public IDescriptor
 		SCreationParams m_creationParams;
 };
 
+NBL_ENUM_ADD_BITWISE_OPERATORS(IBuffer::E_USAGE_FLAGS)
+
 template<class BufferType>
 struct NBL_API SBufferBinding
 {

include/nbl/asset/IImage.h

@@ -740,6 +740,8 @@ class NBL_API IImage : public IDescriptor
 };
 static_assert(sizeof(IImage)-sizeof(IDescriptor)!=3u*sizeof(uint32_t)+sizeof(VkExtent3D)+sizeof(uint32_t)*3u,"BaW File Format won't work");
 
+NBL_ENUM_ADD_BITWISE_OPERATORS(IImage::E_USAGE_FLAGS)
+
 } // end namespace nbl::asset
 
 #endif

include/nbl/video/utilities/IUtilities.h

@@ -564,6 +564,9 @@ class NBL_API2 IUtilities : public core::IReferenceCounted
             m_device->blockForFences(1u, &fence.get());
         }
 
+
+        // pipelineBarrierAutoSubmit?
+
         // --------------
         // downloadBufferRangeViaStagingBuffer
         // --------------