Externalise/deduplicate card support matrix

[micolous]

Description of the issue

There are currently multiple sources of card lists in Metrodroid:

• README.md: https://github.com/micolous/metrodroid/blob/master/README.md
• The list on the website https://github.com/micolous/metrodroid/blob/master/docs/index.md
• Google Play Store metadata in market.xml
• The modified version of market.xml used for F-Droid metadata
• CardInfo
• Detailed card info matrix: https://github.com/micolous/metrodroid/wiki/checklists
• Individual wiki pages

I like the detailed card info matrix, because it has a lot of information about individual available features, not just what we support. There's also information which is off in individual wiki pages.

I like the wiki because it contains information as the support for a card gradually improves.

The website needs to be a little bit behind the rest, as that's what released on GPS / F-Droid.

I think the wiki is out of scope. But at least getting a source of truth for everything that's not the wiki would be an improvement.

Translation is still a challenge, but at least generating the source English text would help significantly. Right now these get out of sync when I forget to action them.

What information needs to be collated

• Card name
• (optional) Name of agency
• Agency's website
• Location (country, city)
• Card media type (MFC, MFD, MFU, ISO7816, FeliCa...)
• Logo

Maybe also get some screenshot metadata