Expose publicly Error, ErrorKind and Result from error module (#10)

* Expose publicly Error, ErrorKind and Result from error module

* Cargo fmt

Author: mthh

CHANGELOG.md

@@ -1,5 +1,9 @@
 ## Changelog
 
+### Unreleased changes
+
+- Expose error type (fixes #9).
+
 ### 0.11.0 (2023-10-06)
 
 - Add `f32` feature to use `f32` instead of `f64` for the input values and the computations (thanks to @hakolao).

src/lib.rs

@@ -77,6 +77,7 @@ pub type Ring = Vec<Pt>;
 pub use crate::band::Band;
 pub use crate::contour::Contour;
 pub use crate::contourbuilder::ContourBuilder;
+pub use crate::error::{Error, ErrorKind, Result};
 pub use crate::isoringbuilder::contour_rings;
 pub use crate::line::Line;