HPCC-12014 Provide the regression suite path to all queries.

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-12017 Refactor the self.args.setupExtraX code

Rrefactor the code. Remove all lines inserted by Gavin and put then
into the main(). This change fixed the "won't work in run mode" problem
(there was wrong instruction sequence)

Fix problem caused class handling (inclde/eclude) in query mode
(there was a wrong initialisation of classIncluded/classExcluded

Signed-off-by: Attila Vamos <attila.vamos@gmail.com>