Add Monero Address

Apologies if this is in the wrong repository. I will repost if directed.

I would like to see support for a Monero address in the Keybase client. Monero is a private, fungible cryptocurrency that has been around since 2014.

According to this blog post, the following is what Keybase is looking for in a cryptocurrency:

Zcash fixes the privacy issues, while retaining the usability we want: just post an address on your profile once, and that's it. Let the money flow in.

Monero has the same functionality. One can post any Monero address, and it is private by default. If you would also like to allow visibility (in relation to "tip jars or donations"), you can also ask users for an optional view key that will show the incoming transactions.

Monero has a substantially larger market capitalization than Zcash, and it has a larger community. I believe if Keybase found enough interest for Zcash, there is also enough interest for Monero.

Learn more at getmonero.org. If you are having difficulty adding Monero, please visit the Reddit page or #monero-dev on IRC.

Start by locating the Keybase client’s existing cryptocurrency support, with the Zcash functionality referenced in the issue as a comparison point. Determine the client entry points and tests involved before defining what Monero address and optional view-key support would require; done means Monero support is implemented and covered by tests.