[memory_redirection] Added support for memory redirection to dram_directory.cc
[memory_redirection] Added support for memory redirection to dram_directory.cc

fhijaz/Graphite,mit-carbon/Graphite,mit-carbon/Graphite-Cycle-Level,8l/Graphite,victorisildur/Graphite,mit-carbon/Graphite,mit-carbon/Graphite-Cycle-Level,nkawahara/Graphite,nkawahara/Graphite,fhijaz/Graphite,victorisildur/Graphite,victorisildur/Graphite,8l/Graphite,8l/Graphite,victorisildur/Graphite,mit-carbon/Graphite,8l/Graphite,nkawahara/Graphite,nkawahara/Graphite,fhijaz/Graphite,mit-carbon/Graphite,mit-carbon/Graphite-Cycle-Level,mit-carbon/Graphite-Cycle-Level,fhijaz/Graphite