descriptor-wallet 0.5.2

# Descriptor wallet library

![Build](https://github.com/LNP-BP/descriptor-wallet/workflows/Build/badge.svg)
![Tests](https://github.com/LNP-BP/descriptor-wallet/workflows/Tests/badge.svg)
![Lints](https://github.com/LNP-BP/descriptor-wallet/workflows/Lints/badge.svg)
[![codecov](https://codecov.io/gh/LNP-BP/descriptor-wallet/branch/master/graph/badge.svg)](https://codecov.io/gh/LNP-BP/descriptor-wallet)

[![crates.io](https://img.shields.io/crates/v/descriptor-wallet)](https://crates.io/crates/descriptor-wallet)
[![Docs](https://docs.rs/descriptor-wallet/badge.svg)](https://docs.rs/descriptor-wallet)
[![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)](https://github.com/rust-secure-code/safety-dance/)
[![Apache2 licensed](https://img.shields.io/badge/license-Apache%202-blue)](./LICENSE)

Library for building descriptor-based bitcoin wallets. Everything a modern
read-only bitcoin wallet needs, but which is not (yet) a part of 
[rust-bitcoin](https://crates.io/bitcoin) library.

NB: The library does not work with private keys; it is advised that wallets
will be designed in a way assuming zero private key access for all of their
operations aside from transaction signing; this part must be separated into
other repository/library and be strictly controlled.

This library previously was a part of
[LNP/BP Core Library](https://github.com/LNP-BP/rust-lnpbp).

Library components:
- More efficient manipulations with BIP-32 derivation paths
- Universal miniscript/classical bitcoin descriptors
- Script templates allowing embedding extended pubkeys into bitcoin script 
  assembly
- Lexicographic ordering of transaction & PSBT inputs & oututs
- Script type system
- Helper types for working with hash-lock contracts
- PSBT utility functions (retrieving previous output, computing fee)

Includes separate crate for SLIP-132 functionality in [`/slip132`](./slip132)
subdirectory.