add ps config and grammar for open challenge 2017 magdeburg

psConfig/tasks/openChallenge2017/openChallenge2017.conf

+[main]
+startdb=43;
+uttdb=47;
+silence=400;
+timeout=8;
+openDeviceDirectly=yes;
+alsadevice=sysdefault;
+
+[pocketsphinxinstance]
+name=Main;
+dict=../../../psGrammar/dictionary/tobiDic.dic;
+jsgf=../../../psGrammar/tasks/openChallenge2017/openChallenge2017.jsgf;
+rsbscope=/speechrec/psa/;
+bestpath=no;
+autoload=yes;
+
+[pocketsphinxinstance]
+name=person;
+dict=../../../psGrammar/dictionary/tobiDic.dic;
+jsgf=../../../psGrammar/person/person.jsgf;
+rsbscope=/speechrec/psa/person;
+bestpath=no;
+autoload=yes;
+
+[pocketsphinxinstance]
+name=confirm;
+dict=../../../psGrammar/dictionary/tobiDic.dic;
+jsgf=../../../psGrammar/confirm/confirm.jsgf;
+rsbscope=/speechrec/psa/confirm;
+bestpath=no;
+autoload=yes;
+
+[pocketsphinxinstance]
+name=ordering;
+jsgf=../../../psGrammar/tasks/restaurant/order.jsgf;
+rsbscope=/speechrec/psa/ordering;
+bestpath=no;
+autoload=yes;

psGrammar/tasks/openChallenge2017/openChallenge2017.jsgf

+#JSGF V1.0;
+grammar openChallenge2017;
+public <statement> = [tobi] (<reason> | <name> | <no> | <yes> | <stop>);
+
+<reason> = i want to see the new robot;
+<name> = [i am] michael; 
+<no> = [tobi] no [thank you];
+<yes> = [tobi] yes [please];
+<stop> = stop;
+
+