Add support for PodList

Author: grod220

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "spl-pod"
-version = "0.5.1"
+version = "0.6.0"
 description = "Solana Program Library Plain Old Data (Pod)"
 authors = ["Anza Maintainers <[email protected]>"]
 repository = "https://github.com/solana-program/libraries"

pod/Cargo.toml

@@ -2,6 +2,7 @@
 
 pub mod bytemuck;
 pub mod error;
+pub mod list;
 pub mod option;
 pub mod optional_keys;
 pub mod primitives;