Move some macros into the deprecated folder

 - answerUtils.pl -- seems to be old-style answers-- used in 1 OPL problem
- contextPeriodic.pl - no code in it.  Built into MathObjects.pl.
- parserMultiPart.pl -replaced with Multianswer
- parserQuotedString.pl - not documented and not in OPL
- parserUtils.pl - old-style PG constants.  Used only in 9 OPL problems.
- PGcomplesmacros.pl: funcitonality built-in to mathobjects.  Used in old-style problems.
- PGcomplexmacros2.pl not used in OPL -- functionality may be in MathObject.
- PGnumericevaluators - old style (pre-Mathobject) answer evaluators.  Note: still listed in a lot of problems. > 1000
- PGsequentialmacros.pl - precursor to Scaffold.pl
- weightedGrader.pl - this functionality is now built-in to the standard grader.

Author: pstaabp