added MyGrid.cxx compilation to make path
Updated example MyCrossSection steerng to have MyGrid steering files
lightly cleaned up
Added support for reading MyGrid steering file and generating instances of MyGrid class instead of reading reference locally. Basically, MyGrid steerings are provided and handled instead of a direct link to the grid root file
Updated for new MyGrid steering
New class for handleing Grid data. Requires it's own steering file to keep track of units, etc. This class will be built up more in the future
test mygrid steering files for use with MCgrid example steering files 'CDF2009_ZRap.txt' and 'MCgrid_CDF_2009.txt'
temporary steering file in place of 'MCGrid_CDF_2009.txt' for testing new MyGrid class