CQL Vector type support

This commit adds serializing and deserializing rune lists to/from CQL vectors.

Cargo.toml

@@ -40,7 +40,7 @@ rand_distr = "0.4"
 regex = "1.5"
 rune = "0.13"
 rust-embed = "8"
-scylla = { path = "../scylla-rust-driver/scylla", features = ["ssl"] }
+scylla = { git = "https://github.com/pkolaczk/scylla-rust-driver.git", branch = "vector", features = ["ssl"] }
 search_path = "0.1"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

src/scripting/bind.rs

@@ -80,6 +80,15 @@ fn to_scylla_value(v: &Value, typ: &ColumnType) -> Result<CqlValue, CassError> {
                 .try_collect()?;
             Ok(CqlValue::List(elements))
         }
+        (Value::Vec(v), ColumnType::Vector(elt, _dim)) => {
+            let v = v.borrow_ref().unwrap();
+            let elements = v
+                .as_ref()
+                .iter()
+                .map(|v| to_scylla_value(v, elt))
+                .try_collect()?;
+            Ok(CqlValue::Vector(elements))
+        }
         (Value::Vec(v), ColumnType::Set(elt)) => {
             let v = v.borrow_ref().unwrap();
             let elements = v