use of StiScan to show Eloss from Sti

tool from Dmitri Smirnov :
https://drupal.star.bnl.gov/STAR/blog/smirnovd/sc-meeting-june-25-2014 and 
readme 

1) some  tests
Eloss vs. Z vs. R with 3 configs.
Eloss vs. Z vs. Phi with 3 configs

Left : StiPxlDetectorBuilder has no inactive materials (buildInactiveVolumes is commented) : the 2 lines at 2.5 and 8 cm are due to the PLAC volume (active silicon)

middle : StiPxlDetectorBuilder has the inactive materials from the supports (PXL sector, DTUH, PSUP) ; this is the CVSROOT version.
We see the bands mentioned by Spiros at 5,6 and 12 cm

right : StiPxlDetectorBuilder from CVSROOT + the inactive materials of the LADR (as I described in yesterday's meeting)
We see some addition of Eloss for both inner and outer layer around z = -15 cm

2) selected Sti volumes.
we can select a list of volumes to show the Eloss.
Below is the Eloss for the inactive materials of the PXL LADR : GLUA, GLUB, GLUC, DRIV, ALCA and CFBK

and for the whole PXL