Stubbed out database.

src/morethantext/mod.rs

@@ -1,4 +1,5 @@
 mod cache;
+mod database;
 pub mod error;
 mod store;
 
@@ -8,6 +9,7 @@ use async_std::{
     sync::{Arc, Mutex},
     task::{sleep, spawn},
 };
+use database::Database;
 use error::{DBError, ErrorCode};
 use rand::{distributions::Alphanumeric, thread_rng, Rng};
 use std::{