Re-export P2shError

The `address` module is currently publicly re-exporting all error types
that appear as return values for any pubic function, except for the
`P2shError` - we should be uniform.

This re-export of error thing has not been discussed/agreed upon as a
policy but I have been doing it for the last few months anytime I
introduced an `error` module - there has been no push back so I assumed
it was acceptable. Before 1.0 we should probably have a policy on this.

bitcoin/src/address/mod.rs

@@ -50,11 +50,10 @@ use crate::network::{Network, NetworkKind};
 use crate::prelude::*;
 use crate::taproot::TapNodeHash;
 
-use self::error::P2shError;
 #[rustfmt::skip]                // Keep public re-exports separate.
 #[doc(inline)]
 pub use self::{
-    error::{FromScriptError, NetworkValidationError, ParseError, UnknownAddressTypeError, UnknownHrpError},
+    error::{FromScriptError, NetworkValidationError, ParseError, P2shError, UnknownAddressTypeError, UnknownHrpError},
 };
 
 /// The different types of addresses.