Refactors raw2trace to produce a separate trace file per thread rather than interleaving them into a single file. The file_reader now does the interleaving. As part of the refactoring, per-traced-thread data is isolated in a data structure which is passed to each processing routine. This will make it easier to parallelize in the future.
Changes raw2trace_directory_t to produce a vector of output files, one per input file. It puts them in a trace/ subdir that is a peer of the input raw/ subdir by default.
Deprecates the drcachesim front-end -infile but still supports it for legacy traces. Updates analyzer_multi's input code to auto-post-process the raw files if there no processed files in a trace/ subdirectory.
Updates the changelog, documentation, and intra-repository uses of raw2trace.
Issue: #3230 (closed)