Move everything in the root

src/descriptor/error.rs

@@ -0,0 +1,26 @@
+#[derive(Debug)]
+pub enum Error {
+    InternalError,
+    InvalidPrefix(Vec<u8>),
+    HardenedDerivationOnXpub,
+    MalformedInput,
+    KeyParsingError(String),
+
+    BIP32(bitcoin::util::bip32::Error),
+    Base58(bitcoin::util::base58::Error),
+    PK(bitcoin::util::key::Error),
+    Miniscript(miniscript::Error),
+    Hex(bitcoin::hashes::hex::Error),
+}
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{:?}", self)
+    }
+}
+
+impl_error!(bitcoin::util::bip32::Error, BIP32);
+impl_error!(bitcoin::util::base58::Error, Base58);
+impl_error!(bitcoin::util::key::Error, PK);
+impl_error!(miniscript::Error, Miniscript);
+impl_error!(bitcoin::hashes::hex::Error, Hex);