Adding CryptoPhoto as a 2FA provider

When you've fixed this I'll label this PR as `Looks good`. Then another collaborator needs to verify it before merging.
The owner later checks that everything looks nice before he updates the site. It usually take 1-5 days.
Could take longer depending on how much work we have outside of this project.  
We're all volunteers and do this in our spear time so please have patience.