Added comments

app/database/sqlite.database.js

@@ -2,8 +2,10 @@ const Database = require("better-sqlite3");
 const logger = require("../utils/logger.util");
 const db_conf = require("../config/db.conf");
 
+// Holds the database class object
 var db;
 
+// Connect to SQLite database
 function connect() {
     try {
         logger.info("Connecting to Database...");
@@ -14,10 +16,12 @@ function connect() {
     }
 }
 
+// Database object getter
 function getDB() {
     return db;
 }
 
+// Database object setter
 function setDB(newDb) {
     db = newDb;
 }