*: Use autocomplete for route-maps under commands that require it

*: Use autocomplete for route-maps under commands that require it

For example:

```
donatas-laptop# show bgp ipv4 unicast neighbors 127.0.0.2 advertised-routes route-map ?
  RMAP_NAME  Name of the route map
       testas2 testas

donatas-laptop(config)# router bgp
donatas-laptop(config-router)# address-family ipv4
donatas-laptop(config-router-af)# redistribute connected route-map ?
  RMAP_NAME  Pointer to route-map entries
       testas2 testas

donatas-laptop(config-router-af)# network 192.168.0.0/23 route-map ?
  RMAP_NAME  Name of the route map
       testas2 testas
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>