Backporting of SiStrip Tracker DQM and DB monitoring code

This pull request is on top of 1822 which can, then, closed, if managers prefer.

Mostly backportings of existing changes in 6xy and 70x to keep 53x updated. All the changes, including the new ones affect the Tracker monitoring tools for DB conditions plus one bug fix which was missed in a previous pull request. In details they are:

new boolean in the TrackerMap code to print only the pixel map
new binary to print a TrackerMap given an input ascii file
modified scripts to prepare the trend plots of the DB conditions.
new tracker maps produced for the tracker offline shifter