Added OOB SSRF Checks for HTTP + DNS

[alp1n3-eth]

Contains checks that may detect certain scenarios where valid URLs might need a different path or scheme to achieve OOB SSRF.

BCheck Contributions

• BCheck compiles and executes as expected
• BCheck contains appropriate metadata (name, version, author, description and appropriate tags)
• Only .bcheck files have been added or modified
• BCheck is in the appropriate folder
• PR contains single or limited number of BChecks (Multiple PRs are preferred)
• BCheck attempts to minimize false positives

[Michelle-PortSwigger]

Looks good

[PortSwiggerWiener]

Thanks for your PR.

Looks good. 👍