reordered includes to ensure that boost/python.hpp is included before system headers

modules/config/base.hh

modules/gui/src/python_shell/gutter.cc

modules/gui/src/python_shell/python_completer.cc

modules/gui/src/python_shell/python_context_parser.hh

modules/gui/src/python_shell/python_interpreter.hh

modules/gui/src/python_shell/python_interpreter_worker.cc

modules/gui/src/python_shell/python_interpreter_worker.hh

modules/gui/src/python_shell/python_namespace_tree_item.cc

modules/gui/src/python_shell/python_shell.cc

modules/gui/src/python_shell/python_shell_fw.hh

modules/gui/src/python_shell/python_shell_widget.cc

modules/gui/src/python_shell/python_shell_widget.hh

modules/gui/src/python_shell/python_syntax_highlighter.cc

modules/gui/src/python_shell/shell_history.hh

modules/gui/src/python_shell/state.cc

modules/gui/src/python_shell/state.hh

modules/gui/src/python_shell/state_machine.cc

modules/gui/src/python_shell/state_machine.hh

modules/gui/src/python_shell/transition.cc

modules/gui/src/python_shell/transition.hh