Create a separate directory for simulation compiliation.

Made some adjustments for sims larger than the ball sim.
Make some changes to handle library packages such as JEOD.  Also
removed some dead code.

trick_source/codegen/Interface_Code_Gen/PrintAttributes.hh

@@ -45,9 +45,6 @@ class PrintAttributes {
         /** Create makefile for IO files */
         virtual void printIOMakefile() ;
 
-        /** Create empty io_files for headers that contain no class/struct information */
-        virtual void printEmptyFiles() ;
-
         /** Prints list of files that contain ICG:(No) in the Trick header */
         virtual void printICGNoFiles() ;