Moved subdirectories after options in CMakeLists
Moved subdirectories after options in CMakeLists

This fixes a compiling error if you compile the most updated
avogadrolibs from scratch. Since the options were not set before
adding the subdirectories, options such as USE_QT were set to be
false automatically, and then several needed libraries such as
qtgui would not be compiled.

ghutchis/avogadrolibs,ghutchis/avogadrolibs,OpenChemistry/avogadrolibs,OpenChemistry/avogadrolibs,OpenChemistry/avogadrolibs,OpenChemistry/avogadrolibs,OpenChemistry/avogadrolibs,ghutchis/avogadrolibs,ghutchis/avogadrolibs,ghutchis/avogadrolibs