add game command handler to the game

src/main/c/Georg/tictactoe.c

@@ -100,7 +100,7 @@ int handleGameInput( char* input ){
     if( strstr(input, "set") != NULL ){
         return 1;
     }else{
-        return false;
+        return -1;
     }
 }
 
@@ -159,9 +159,12 @@ int startGame( int code ){
     initializeBoard( board );
 
     while( GAME.currentState == 1 ){
-        int nextState = handleCommand( getUserInput() );
+        char* input = getUserInput();
+        int nextState = handleCommand( input );
+
+        if( nextState == -1 ){ // no stateCommand
+            int gameCommand = handleGameInput( input );
 
-        if( nextState == -1 ){
             printf("command not found!");
         }else{
             GAME.currentState = nextState;