Merge #585: set coin type based on network

db9d43e use network to set coin type (Esraa Jbara)

Pull request description:

  resolves #578

  * [x] This pull request breaks the existing API
  * [x] I've added tests to reproduce the issue which are now passing
  * [x] I'm linking the issue being fixed by this PR

ACKs for top commit:
  danielabrozzoni:
    re-ACK db9d43e
  afilini:
    re-ACK db9d43e

Tree-SHA512: 0310a09ef21c6fc792688a9ccc19221b1cffaeceefd34f4c83f206e965abe963a78f9e4ca53db046b39e7bf1be118a101afe5c08c43f06ecf35ed9536102cd9b

Author: afilini

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - New MSRV set to `1.56.1`
 - Fee sniping discouraging through nLockTime - if the user specifies a `current_height`, we use that as a nlocktime, otherwise we use the last sync height (or 0 if we never synced)
 - Fix hang when `ElectrumBlockchainConfig::stop_gap` is zero.
+- Set coin type in BIP44, BIP49, and BIP84 templates
 
 ## [v0.19.0] - [v0.18.0]