Changed C API Numpy library to directly access molfile structure data

pymolfile/molfile/1

pymolfile/molfile/_libpymolfile.so

...molfile.so.dSYM/Contents/Resources/DWARF/_libpymolfile.so

pymolfile/molfile/_numpy_swig.so

pymolfile/molfile/compile-numind.sh

pymolfile/molfile/compile-signedintbuf.sh

pymolfile/molfile/compile.sh

pymolfile/molfile/libpymolfile-backup2.i

pymolfile/molfile/libpymolfile-new.i

pymolfile/molfile/libpymolfile.i

pymolfile/molfile/libpymolfile.py

pymolfile/molfile/libpymolfile_wrap.cxx

pymolfile/molfile/numind-cython/compile-numind.sh

pymolfile/molfile/numind-cython/numind.cpp

pymolfile/molfile/numind-cython/numind.h

pymolfile/molfile/numind-cython/numind.html

pymolfile/molfile/numind-cython/numind.pyx

pymolfile/molfile/numind-cython/numind.so

pymolfile/molfile/numind-cython/test_numpy_swig.py

pymolfile/molfile/numpy_swig.h