Combinator for the ensure functions on the client module of Voyager

Currently the ensure functions only expect one type such as:

    pub fn ensure_ibc_interface(
        &self,
        ibc_interface: impl AsRef<str>,
    ) -> Result<(), UnexpectedIbcInterfaceError> {
        if ibc_interface.as_ref() != self.ibc_interface.as_str() {
            Err(UnexpectedIbcInterfaceError {
                expected: self.ibc_interface.clone(),
                found: ibc_interface.as_ref().to_owned(),
            })
        } else {
            Ok(())
        }
    }

We should make these functions to support multiple expected values such that we can have multiple supported values.