updated cmakefile to install python package into the python-site, modified bgslibrary_core to be shared
updated cmakefile to install python package into the python-site, modified bgslibrary_core to be shared

andrewssobral/bgslibrary,andrewssobral/bgslibrary,andrewssobral/bgslibrary,andrewssobral/bgslibrary,andrewssobral/bgslibrary,andrewssobral/bgslibrary