feat: Introduce the meilidb-data workspace member

meilidb-data/src/database.rs

@@ -0,0 +1,21 @@
+use std::path::Path;
+use std::sync::Arc;
+
+#[derive(Clone)]
+pub struct Database(sled::Db);
+
+impl Database {
+    pub fn start_default<P: AsRef<Path>>(path: P) -> sled::Result<Database> {
+        sled::Db::start_default(path).map(Database)
+    }
+
+    pub fn open_index(&self, name: &str) -> sled::Result<Index> {
+        let name = format!("index-{}", name);
+        let bytes = name.into_bytes();
+
+        self.0.open_tree(bytes).map(Index)
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct Index(Arc<sled::Tree>);

meilidb-data/src/lib.rs

@@ -0,0 +1,3 @@
+mod database;
+
+pub use self::database::{Database, Index};