HP System Management Homepage LoginScanner Upgrade

This upgrades the hp_sys_mgmt_login.rb module to LoginScanner.

## Verification Steps: ##

- [ ] Download **SMH 7.4 for Windows (x86)**: http://h18013.www1.hp.com/products/servers/management/agents/
- [ ] Run the installer of HP System Management Homepage on a Windows box.
- [ ] In the setup process, the group name is the host name which you can find in ```ipconfig /all```
- [ ] Choose a Trust mode. In my test box, I did "Trust All"
- [ ] Leave the rest of the options default (basically you just keep pressing next until it starts installing)
- [ ] After the installation is done, make sure SMH is up and running by browsing to: https://localhost:2381/
- [ ] Start msfconsole
- [ ] Use auxiliary/scanner/http/hp_sys_mgmt_login.rb
- [ ] set a valid username and password, make sure you get a successful login attempt
- [ ] Rerun with a bad password, this time you should get a failed login attempt