Auxiliary module to HP LaserJet Printer SNMP Enumeration

This module allows enumeration of files previously printed via SNMP request. It provides details as filename, client, timestamp and username informations. The default community used is "public".
(old request: http://dev.metasploit.com/redmine/issues/6864).

```
msf auxiliary(snmp_enum_hp_laserjet) > set RHOSTS 1.2.3.4
RHOSTS => 1.2.3.4
msf auxiliary(snmp_enum_hp_laserjet) > run

[+] IP address  : 1.2.3.4
[+] Hostname    : HPPRINTERTEST
[+] Description : HP ETHERNET MULTI-ENVIRONMENT,ROM none,JETDIRECT,JD102,EEPROM V.34.63,CIDATE 02/26/2007
[+]
[+] File name   : Secret.pdf
[+] Username    : Jack
[+] Client      : HOSTNAME1
[+] Timestamp   : 20140106170130
[+]
[+] File name   : Test.doc
[+] Username    : Mark
[+] Client      : HOSTNAME2
[+] Timestamp   : 20140106170246
...
..
.
```