Peter M. Groen / openbr

plot pivot update

don't match, use a single column with the name of the file being plotted
instead of quitting.

Signed-off-by: caotto <ottochar@gmail.com>

Implemented Imposter Score Normalization and Match Probability

property.

Export the facevacs directory found by cmake, use that to define a default
config file location of facevacs_dir/etc/frsdk.cfg. Store the config file
path as a property of Globals, allowing users to specify a config file path
as a command line argument to br.exe.
Modifications to openbr_plugin.cpp allow adding dynamic properties (strings
only) to br::Objects.