Merge 'js-bindings/implement .name property' from Anton Harniakou

Returns the string that was used to open the database connection.

Reviewed-by: Diego Reis (@el-yawd)

Closes #1662

bindings/javascript/wrapper.js

@@ -22,6 +22,11 @@ class Database {
           return db.inTransaction();
         },
       },
+      name: {
+        get() {
+          return path;
+        },
+      },
     });
   }