Setup store.

src/morethantext/mod.rs

@@ -1,5 +1,6 @@
 mod cache;
 mod error;
+mod store;
 
 use async_std::{
     channel::{unbounded, Sender},
@@ -8,6 +9,7 @@ use async_std::{
 };
 use cache::Cache;
 use error::{ErrorCode, MTTError};
+use store::Store;
 
 #[derive(Clone, Debug)]
 struct Data {