Move the toml helpers to elefren::helpers::toml

src/helpers/mod.rs

@@ -0,0 +1,11 @@
+#[cfg(feature = "toml")]
+/// Helpers for serializing to/deserializing from toml
+///
+/// In order to use this module, set the "toml" feature in your Cargo.toml:
+///
+/// ```toml,ignore
+/// [dependencies.elefren]
+/// version = "0.12"
+/// features = ["toml"]
+/// ```
+pub mod toml;