Update logging (#83)
Update logging (#83)

* Additional Logging Group

Because of the need to have minimal logging for large-scale simulation & sensitivity modeling, we needed to shrink as much as possible the sqlite database output from SMP, while retaining a minimum amount of information - scenario run data and position history.  To be able to log VectorPosition table without the other position tables, I put said table into its own logging group - group 4.  Along with the practical justification of shrinking output, this can be logically justified because this table is ultimately the result of all the other logging groups - scenario info., position info., challenge info. and bargaining info.

* Add new command line flag

If the command line flag --logmin is passed into smpc, the application automatically disables logging of groups 1,2,3.  Only scenario information and position history will be logged.

arunsathvik/KTAB,lsyaseen/KTAB,amit133/KTAB,KAPSARC/KTAB,arunsathvik/KTAB,ambah/KTAB,amit133/KTAB,amit133/KTAB,arunsathvik/KTAB,amit133/KTAB,KAPSARC/KTAB,ambah/KTAB,ambah/KTAB,lsyaseen/KTAB,lsyaseen/KTAB,arunsathvik/KTAB,ambah/KTAB,KAPSARC/KTAB