Support Scutum WAF detection

[0n1shi]

Which category is this pull request?

• A new feature/enhancement.
• Fix an issue/feature-request.
• An improvement to existing modules.
• Other (Please mention below).

Where has this been tested?

• Python Version
  • v3.x
  • v2.x
• Operating System:
  • Linux (Please specify distro)
  • Windows
  • MacOS

Does this close any currently open issues?

[Mention any issue which this PR closes]

Does this add any new dependency?

[Mention if this PR includes any new library]

Does this add any new command line switch/argument?

[Mention if the changes add any new arguments like --arg]

Any other comments you would like to make?

Scutum is a widely used commercial WAF, known for its strong presence among enterprise users.

https://www.scutum.jp/

$ python -m wafw00f.main -v https://xxxx/

                   ______
                  /      \
                 (  Woof! )
                  \  ____/                      )
                  ,,                           ) (_
             .-. -    _______                 ( |__|
            ()``; |==|_______)                .)|__|
            / ('        /|\                  (  |__|
        (  /  )        / | \                  . |__|
         \(_)_))      /  |  \                   |__|

                    ~ WAFW00F : v2.3.1 ~
    The Web Application Firewall Fingerprinting Toolkit
    
[*] Checking https://xxxx/
[+] The site https://xxxx/ is behind Scutum (Secure Sky Technology Inc.) WAF.
[~] Number of requests: 2

[sandrogauci]

@claude review these changes

[sandrogauci]

thanks for your contribution @0n1shi