Add VFR procedures hosting

[shanet]

Many airports have unofficial VFR procedures documents published on their airport websites, but this is not centralized anywhere.

For example, in Washington:

• Renton: https://www.rentonwa.gov/files/assets/city/v/2/public-works/airport/documents/renton-airport_pilot-info-2025_print-022725.pdf
• Boeing Field: https://cdn.kingcounty.gov/-/media/king-county/depts/executive-services/airport/pilot-information/bfi-vfr-routes-final-20210515.pdf
• Paine: https://www.painefield.com/DocumentCenter/View/1081/Traffic-Area-Map-and-Noise-Abatement-Procedures
• Orcas: https://www.portoforcas.com/dev/wp-content/uploads/2023/12/FINAL-Orcas-Noise-Abatement-Brochure-Dec2023.pdf
• Friday Harbor: https://www.portfridayharbor.org/airport/flight-plans-noise-abatement/
• Bellingham: https://www.portofbellingham.com/797/Noise-Abatement
• Auburn: https://img1.wsimg.com/blobby/go/442d9e7e-7a3d-4b50-a0be-16ca6b9d06f5/downloads/23_AMA%20Card_Traffic%20Pattern.pdf?ver=1740501513384

Having a spot to upload or link to these files and make them easier to find from an airport page would be useful.