added OSX MKL build script

src/NativeProviders/OSX/mkl_build.sh

@@ -0,0 +1,15 @@
+export INTEL=/opt/intel
+export MKL=$INTEL/mkl
+export OPENMP=$INTEL/composerxe/lib
+export OUT=../../../out/MKL/OSX
+
+mkdir -p $OUT/x64
+mkdir -p $OUT/x86
+
+clang++ -D_M_X64 -DGCC -m64 --shared -fPIC -o $OUT/x64/MathNet.Numerics.MKL.dll -I$MKL/include -I../Common ../MKL/memory.c ../MKL/capabilities.cpp ../MKL/vector_functions.c ../MKL/blas.c ../MKL/lapack.cpp $MKL/lib/libmkl_intel_lp64.a $MKL/lib/libmkl_core.a $MKL/lib/libmkl_intel_thread.a -L$OPENMP -liomp5 -lpthread -lm  
+
+cp $OPENMP/libiomp5.dylib  $OUT/x64/
+
+clang++ -D_M_IX86 -DGCC -m32 --shared -fPIC -o $OUT/x86/MathNet.Numerics.MKL.dll -I$MKL/include -I../Common ../MKL/memory.c ../MKL/capabilities.cpp ../MKL/vector_functions.c ../MKL/blas.c ../MKL/lapack.cpp $MKL/lib/libmkl_intel.a $MKL/lib/libmkl_core.a $MKL/lib/libmkl_intel_thread.a  -L$OPENMP -liomp5 -lpthread -lm  
+
+cp $OPENMP/libiomp5.dylib  $OUT/x86/