simplify DB constructor

Signed-off-by: Lee Smet <lee.smet@hotmail.com>

heromodels/examples/basic_user_example.rs

@@ -4,16 +4,8 @@ use heromodels::models::{Comment, User};
 use heromodels_core::Model;
 
 fn main() {
-    let index_db = tst::TST::new("/tmp/ourdb/tst", true).expect("can create index DB");
-    let data_db = ourdb::OurDB::new(ourdb::OurDBConfig {
-        incremental_mode: false,
-        path: "/tmp/ourdb/ourdb".into(),
-        file_size: None,
-        keysize: None,
-        reset: Some(true),
-    })
-    .expect("can create data DB");
-    let db = heromodels::db::hero::OurDB::new(index_db, data_db);
+    // Create a new DB instance in /tmp/ourdb, and reset before every run
+    let db = heromodels::db::hero::OurDB::new("/tmp/ourdb", true).expect("Can create DB");
 
     println!("Hero Models - Basic Usage Example");
     println!("================================");