Update sshImporters.ts to parse Include directive

[xhiroga]

Resolve #10099

I've tested these changes locally and so far they work. However, I'm not entirely sure if this is the best approach, so I'd really appreciate any guidance or suggestions. I'm totally open to revising the code based on your feedback. Thanks in advance!

Test cases

Normal cases

• Using wildcards in Include directives
• Using absolute paths in Include directives
• Using relative paths in Include directives
• Handle specifying the same file multiple times in an Include directive
• Handle Includes written within a Match or Host block

Error handling

• Cyclic references in Include directives can continue to be processed.
• Processing can continue even if the file specified in the Include directive does not have permissions.
• Processes can continue even if the file specified by an Include directive does not exist.
• Processes can continue even if the file specified in an Include directive has an invalid format.

[Eugeny]

Tested it and it's looking good, thank you!

[xhiroga]

@Eugeny Thanks for verifying it works so far! I’d love to hear your thoughts or suggestions whenever you can. Thank you!

[Eugeny]

LGTM 🚀