All values in the gem5 statistics log file are numeric. This commit adds a
cast on the strings read from the stats file to native numeric values when
and logs a warning in case of a malformed entry.
Gem5's statistics log file contains plenty of interesting information
that are not exposed so far. This module enables control and parsing of
the statistics file by:
- configuring periodic dumps of statistics;
- marking Regions of Interest (ROIs);
- and extracting values of specific fields during the ROIs.
