By default, the CSVDataLoader considers :, ; and / to be delimiters in
feature names and splits the name up. This messes up for RELAP-7
postprocessing files which contains these chars in the feature names. To
address this, I gave all loading methods (load(File), load(String) and
load()) a boolean parameter in their signature(s) which determines if
these chars should be considered delimiters. Calling the regular load
methods without a boolean flag will load the file with the boolean flag
set to false by default. Otherwise, if you'd like to use these
characters as delimiters, pass true into the method signature(s).

Signed-off-by: Anna Wojtowicz <wojtowicza@ornl.gov>