Add default_queue and default_maxMemory to the default route.

A system administrator can now use a condor config file to specify the default queue and maxMemory a job should have when being submitted to the LRMS.  The user's RSL will overwrite the admin supplied values.

## Example File

The administrator may be able to specify default values by inserting the below into a config file (a file in `/etc/condor-ce/config.d/...`:

```
JOB_ROUTER_ENTRIES = \
   [ \
     GridResource = "pbs"; \
     TargetUniverse = 9; \
     name = "Local_PBS"; \
     set_default_queue = "grid"; \
     set_default_maxMemory = 2100; \
     Requirements = true; \
   ]
```

Notice the `set_default_queue` and the `set_default_maxMemory` which will be inserted into the submitted job by the job router.