First big commit of the mchview program and its accompanying library,

First big commit of the mchview program and its accompanying library,
libMUONgraphics.pkg:
- For information about the program, please see READMEmchview.txt
- For information about the new classes, see the classes themselves.
- Adding new program: binmchview.pkg, mchview.cxx;
- Adding new classes (26) in libMUONgraphics
- Adding new READMEmchview.txt file
- In AliMUONDigitMaker: Introducing usage of AliMUONLogger for error messages
- In AliMUONCalibrationData.h: Make CreateObject public
- AliMUONCDB.cxx: In init load ddlstore instead of just segmentation
(Laurent)