Merge #888: plan: Derive PartialEq, Eq, Hash for Assets

2d8e99d plan: Derive PartialEq, Eq, Hash for Assets (lmorett1)

Pull request description:

  Adds `PartialEq`, `Eq`, and `Hash` derives to the `Assets` struct, enabling it to be used as a hashmap key and compared for equality.

    All fields in `Assets` already implement these traits (BTreeSet, Option, etc.), and similar structs in the same module like `CanSign` and `TaprootCanSign` already derive them. This makes the API more consistent and useful for testing and practical applications where comparing or storing `Assets` instances is needed.

ACKs for top commit:
  apoelstra:
    ACK 2d8e99d; successfully ran local tests

Tree-SHA512: f0bb165a743be6b6fce6f13d995d256b92eaa5c1daa6870ea9edb9aabbf6594e1f7501812a98e98da0da0a8f64802a1c93bbeaba57b8f4a346b1083ef673d903

Author: apoelstra

src/plan.rs

@@ -494,7 +494,7 @@ impl TaprootAvailableLeaves {
 }
 
 /// The Assets we can use to satisfy a particular spending path
-#[derive(Debug, Default, Clone)]
+#[derive(Debug, Default, Clone, PartialEq, Eq, Hash)]
 pub struct Assets {
     /// Keys the user can sign for, and how.
     ///