Small changes to the brute_dirs aux module

[mcantoni]

This PR includes the following changes:

• Add timeout, delay and jitter options;
• Cosmetic tweaks to a few modules;

I haven't been able to reproduce #12334 with 5.0.55-dev-46e3e0c

Note: having also the "dir_scanner" aux module... "brute_dirs" could be renamed in "dir_brute".

[dwelch-r7]

[+] Found http://127.0.0.1:8000/go/ 200
[-] Auxiliary failed: NoMethodError undefined method `report_web_vuln' for #<Metasploit::Framework::DataService::RemoteHTTPDataService:0x00007facb0c6a840>
Did you mean?  report_vuln
               report_web_site
[-] Call stack:
[-]   /rapid7/metasploit-framework/lib/metasploit/framework/data_service/proxy/core.rb:136:in `method_missing'
[-]   /rapid7/metasploit-framework/lib/msf/core/auxiliary/report.rb:363:in `report_web_vuln'
[-]   /rapid7/metasploit-framework/modules/auxiliary/scanner/http/brute_dirs.rb:182:in `block (3 levels) in run_host'
[-]   /rapid7/metasploit-framework/modules/auxiliary/scanner/http/brute_dirs.rb:152:in `each'
[-]   /rapid7/metasploit-framework/modules/auxiliary/scanner/http/brute_dirs.rb:152:in `block (2 levels) in run_host'
[-]   /rapid7/metasploit-framework/modules/auxiliary/scanner/http/brute_dirs.rb:126:in `each'
[-]   /rapid7/metasploit-framework/modules/auxiliary/scanner/http/brute_dirs.rb:126:in `block in run_host'
[-]   /rapid7/metasploit-framework/modules/auxiliary/scanner/http/brute_dirs.rb:81:in `each'
[-]   /rapid7/metasploit-framework/modules/auxiliary/scanner/http/brute_dirs.rb:81:in `run_host'
[-]   /rapid7/metasploit-framework/lib/msf/core/auxiliary/scanner.rb:111:in `block (2 levels) in run'
[-]   /rapid7/metasploit-framework/lib/msf/core/thread_manager.rb:106:in `block in spawn'
[*] Auxiliary module execution completed

#12334 is an issue for me with this PR

msf5 auxiliary(scanner/http/brute_dirs) > version
Framework: 5.0.55-dev-4d7f29993a
Console  : 5.0.55-dev-4d7f29993a

[dwelch-r7]

@mcantoni did you have a db connecting when doing your testing? thinking that may be why the issue didn't appear for you

[dwelch-r7]

Release notes

Options for delay and jitter have been added to the brute_dirs module.