Support multiple destinations in make_uri and parse_uri [$350]

[woodser]

This issue requests supporting multiple addresses and amounts in monero-wallet-rpc's make_uri and parse_uri.

This will be used to deposit 2 outputs to the Haveno wallet, one to cover the deposit amount and one to cover the trade fee, in order to allow trades to be posted and taken once funds are available.

See monero-project/monero#7731

[github-actions]

There is a bounty on this issue, the amount is in the title. The bounty will be awarded to the first person(s) who resolves this issue. Read the full conditions in the 'bounties.md' file. If you are starting to work on this issue, please write a comment here, so that we can assign the issue to you and avoid duplicated work.

[benevanoff]

I am beginning work on this now

[erciccione]

Thanks @benevanoff. Please use #haveno-dev on matrix or freenode for questions and coordination :)

[woodser]

Note multi-output deposits are no longer needed with the new trade protocol, but we will honor the bounty once merged into monero-project.