added -DFANN_DLL_EXPORTS to windows build
added -DFANN_DLL_EXPORTS to windows build

Envek/fann,joelself/FannCSharp,devfreesg/fann,Envek/fann,yukota/fann,billylindeman/fann-code,Envek/fann,yukota/fann,joelself/FANNCSharpCore,billylindeman/fann-code,mpalet/fann,billylindeman/fann-code,Quanteek/fann,joelself/FannCSharp,devfreesg/fann,libfann/fann,joelself/FannCSharp,joelself/FannCSharp,imaculate/fann,joelself/FANNCSharpCore,joelself/FANNCSharpCore,arnaudgelas/fann,yukota/fann,mpalet/fann,arnaudgelas/fann,joelself/FannCSharp,Quanteek/fann,devfreesg/fann,imaculate/fann,devfreesg/fann,mpalet/fann,imaculate/fann,yukota/fann,libfann/fann,Quanteek/fann,joelself/FANNCSharpCore,Envek/fann,Quanteek/fann,imaculate/fann,billylindeman/fann-code,libfann/fann,joelself/FANNCSharpCore,libfann/fann,mpalet/fann