ConfigParser.write() requires a file object instead of a path

Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
profilers: add inotify profiler

A profiler that monitors filesystem activity during a test.

The included control file serves as a simple example that proves
that the sleeptest test doesn't do anything with the filesystem
(at least on default watched paths).

Signed-off-by: Cleber Rosa <crosa@redhat.com>