[ie/thisoldhouse] Add login support

[bashonly]

The site apparently uses session cookies now, so a credentialed login method was needed. And per the linked issue, the extractor also wasn't always resolving the Zype URL when the video required auth (the auth token is granted/passed in the query of the resolved URL), so that was fixed also

Closes #8257

Template

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Copilot Summary

🤖 Generated by Copilot at 53ea4f8

Summary

🔐🛠️🧹

Enhance thisoldhouse.py extractor with login and error handling features. Fix and clean up tests. Refactor video extraction code.

Sing, O Muse, of the skillful coder who devised
A way to log in and watch the videos of This Old House,
The ancient show that teaches mortals how to build and renovate
With wisdom and with craft, like Hephaestus in his forge.

Walkthrough

• Add login support and error handling for This Old House extractor (_perform_login, link, link)

• Import urljoin, urlparse, compat_parse_qs, ExtractorError, and expected_status from utils module (link)
• Set _NETRC_MACHINE attribute to thisoldhouse to enable netrc credentials (link)
• Define _perform_login method that performs multiple requests and form submissions to log in to the site (link)
• Check for login required message in _real_extract and call _perform_login if needed (link)
• Simplify extraction of video URL and ID by using a single regex with groups (r'<iframe[^>]+src="([^"]+zype\.com/([^/]+)/embed[^"]*)"') (link)
• Resolve Zype URL by making a HEAD request and following the Location header (link)
• Raise ExtractorError if login fails or Zype URL is invalid (link)

• Update test URLs and comments for unavailable or moved videos (link)
  • Change test URL for how-to-build-a-storage-bench video to /watch/how-to-build-a-storage-bench/ (link)
  • Change test URL for how-to-build-a-raised-vegetable-garden video to /watch/how-to-build-a-raised-vegetable-garden/ and add comment that it is only matching due to geo-restriction (link)
  • Remove test URL for how-to-build-a-picnic-table video and add comment that it is no longer available (link)