Clean up binding input validation

v0.3.2

Bump rust to v0.3.2

Group check API changes take 2

v0.3.1

Update rust binding to version 0.3.1

Group check API changes

v0.3.0

Update rust binding to version 0.3.0

v0.2.0

Update rust crate to version 0.2.0.

Group/field check functions for Go

v0.1.2-alpha.1

Add Go bindings for group check and field check