Merge pull request #352 from wprzytula/cass_error-refactors

errors: Make Rust errors conversion to `CassError` more appropriate

Author: wprzytula

scylla-rust-wrapper/src/api.rs

@@ -713,7 +713,7 @@ pub mod result {
 pub mod error {
     // Disabling rustfmt to have one item per line for better readability.
     #[rustfmt::skip]
-    pub use crate::execution_error::{
+    pub use crate::cass_error::{
         CassError,
         CassErrorResult,
         CassErrorSource,