Win32 fixes:
- added SDO_BLOCK_SIZE macro to win32 config.h
- added explicit casts to remove compiler warnings to sdo.c
- added missing exports to Canfestival-3.def

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LIBRARY	can_anagate_win32

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EXPORTS

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   canReceive_driver

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   canSend_driver

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   canOpen_driver

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   canClose_driver

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   canChangeBaudRate_driver