embeded library
- qhull

copyright
- check compatibility with GPL of the qhull
- add header
  * PyMca/PhysicalMemory.py
  * PyMca/PyMcaPlugins/MotorInfoPlugin.py
  * PyMca/PyMcaPlugins/MotorInfoWindow.py
  * PyMca/PyMcaPlugins/StackScanWindowPlugin.py
  * PyMca/PyMcaPlugins/XMCDPlugin.py
  * PyMca/XMCDWindow.py
  * PyMca/XRFMC/XMSOParser.py
  * PyMca/XRFMC/XRFMCHelper.py
  * PyMca/XRFMC/XRFMCPyMca.py
  * PyMca/XRFMC/XRFMCPyMca.py
  * PyMca/XRFMC/__init__.py