Move ws18 exercises to archive

psConfig/archive/2018/challenge/nea/nea.conf

psConfig/archive/2018/challenge/pollen/pollen.conf

psConfig/archive/2018/challenge/team2/configTeam2.conf

psConfig/archive/2018/exercise/cstollen/cstollen.conf

psConfig/archive/2018/exercise/dfinnerEx4.conf

psConfig/archive/2018/exercise/jschlueter_ex4.conf

psConfig/archive/2018/exercise/mdiallo_Ex4.conf

psConfig/archive/2018/exercise/mdiallo_calc.conf

psConfig/archive/2018/exercise/mvieth.conf

psConfig/archive/2018/exercise/psConfig_jniermann.conf

psConfig/archive/2018/exercise/rlipperts_exercises.conf

psGrammar/archive/2017/team_lit/lit_command.jsgf

psGrammar/archive/2017/team_lit/lit_name.jsgf

psGrammar/archive/2017/team_lit/lit_testfile

psGrammar/archive/2018/challenge/nea/nea.jsgf

psGrammar/archive/2018/challenge/nea/removeAddBillItem.jsgf

psGrammar/archive/2018/challenge/nea/takeOrder.jsgf

psGrammar/archive/2018/challenge/pollen/challenge.jsgf

psGrammar/archive/2018/challenge/pollen/confirm.jsgf

psGrammar/archive/2018/challenge/pollen/newGuest.jsgf