Move summary to common header.
Change struct tree_info to struct resources_info
Parsing single summaries from stream.
Printing/parsing of multiple summaries per file.
Summary resource file to json format output.
Prepare to pull out polling library.
Move mem monitoring to poll library.
Move io monitoring to poll library.
Move cpu-time monitoring to poll library.
Move wd footprint monitoring to poll library.
Polling once of proc/wd/fs to poll library.
Move polling all procs to poll library.