Use NBL_API2 to fix symbols not being exported

Author: deprilula28

include/nbl/asset/IAsset.h

@@ -39,7 +39,7 @@ class IAssetManager;
 	@see IReferenceCounted
 */
 
-class NBL_API IAsset : virtual public core::IReferenceCounted
+class NBL_API2 IAsset : virtual public core::IReferenceCounted
 {
 	public:
 		enum E_MUTABILITY : uint32_t

include/nbl/video/IGPUFence.h

@@ -39,7 +39,7 @@ class NBL_API IGPUFence : public core::IReferenceCounted, public IBackendObject
 };
 
 
-class NBL_API GPUEventWrapper : public core::Uncopyable
+class NBL_API2 GPUEventWrapper : public core::Uncopyable
 {
 protected:
     ILogicalDevice* mDevice;

include/nbl/video/ILogicalDevice.h

@@ -37,7 +37,7 @@ namespace nbl::video
 class IDescriptorPool;
 class IPhysicalDevice;
 
-class NBL_API ILogicalDevice : public core::IReferenceCounted, public IDeviceMemoryAllocator
+class NBL_API2 ILogicalDevice : public core::IReferenceCounted, public IDeviceMemoryAllocator
 {
     public:
         struct SQueueCreationParams

include/nbl/video/utilities/CPropertyPoolHandler.h

@@ -25,7 +25,7 @@ static_assert(NBL_BUILTIN_PROPERTY_POOL_INVALID==IPropertyPool::invalid);
 
 // property pool factory is externally synchronized
 // TODO: could rename to CSparseStreamingSystem/CSparseStreamingHandler
-class NBL_API CPropertyPoolHandler final : public core::IReferenceCounted, public core::Unmovable
+class NBL_API2 CPropertyPoolHandler final : public core::IReferenceCounted, public core::Unmovable
 {
 	public:
 		//

include/nbl/video/utilities/IUtilities.h

@@ -15,7 +15,7 @@
 namespace nbl::video
 {
 
-class NBL_API IUtilities : public core::IReferenceCounted
+class NBL_API2 IUtilities : public core::IReferenceCounted
 {
     protected:
         constexpr static inline uint32_t maxStreamingBufferAllocationAlignment = 64u*1024u; // if you need larger alignments then you're not right in the head