Merge bitcoindevkit/bdk-cli#57: if no wallet name was provided, use one derived from...

9b278bd91c17d4f01740cfd15e67c96fd2b40911 Bump bdk and bdk-reserves version to 0.16 (Richard Ulrich)
e52e81951e229fd79225349951699a034874b65d if no wallet name was provided, use one derived from the descriptor (Richard Ulrich)

Pull request description:

  ### Description

  if no wallet name was provided, use one derived from the descriptor

  ### Notes to the reviewers

  Is there a better place to use wallet_name_from_descriptor so that the generated name shows up in the unit tests instead of the placeholder?

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk-cli/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

Top commit has no ACKs.

Tree-SHA512: 3ea0ce74c6447174329dfed7eb3721faa5596cbaf3b746b2134f0b02b512533e69e54e28c3d8692abb885f86345c47367999bcea307977c67106dbc33fb466a9