* Added VisualStudio DLL build configurations
Add inline preprocessor definition to VisualStudio project file - this allows compilation with older versions of VisualStudio (e.g. 2013) which do not support the C99 inline keyword
Removed newhope.c from VisualStudio build files, as it is already included in kex_rlwe_newhope.c and will lead to multiple symbol definition errors in shared library builds
Add ENABLE_CODE_MCBITS guard to kex_code_mcbits.c to protect against missing symbol definition errors in VisualStudio shared library builds
Added VisualStudio shared library exports file dll.def, including the necessary core functions to use oqs from applications
Also export free when building Windows DLLs - this is important as the correct runtime library has to be used to free memory allocated by the OQS library. Applications may be using multiple runtime libraries or memory managers, calling the wrong free will result in memory corruption or segfault
* Add missing newline at end of file.
