load cppflow models in memory and make prediction later on them

[Gilkovitch]

// LOAD NN engine with CPPFLOW
//return engine ID for futur prediction
//engine filename is on dll folder

double __stdcall BinaCpp_loadNN(
const char* filename)
{
//loading the model each time causes overload.
//Either you load the model in global scope (outside of any class or main).
//The other option is to create a unique pointer which will be loaded once when first called.

//Declare unique pointer:

std::unique_ptr<cppflow::model> model;

//When you first use the model or in a constructor or init function call:

model = std::make_unique<cppflow::model>(filename);


return model;

}

//Then use the model to make predictions:
//auto prediction = (*model)(input)