refactor core "helpers" to "models"

src/components/Layout/Overlay/components/cards/__searchBar.js

@@ -1,6 +1,6 @@
 import React from 'react'
 import styles from './__searchBar.less'
-import {newSearch} from "core/helpers/overlay"
+import {newSearch} from "core/models/overlay"
 
 export default class __searchBar extends React.Component{
     state = {

src/models/app.js

@@ -1,7 +1,7 @@
 import store from 'store'
 import { app_config } from 'config'
 import keys from 'config/app_keys'
-import { user, session } from 'core/helpers'
+import { user, session } from 'core/models'
 import { router, verbosity, appInterface } from 'core/libs'
 import settings from 'core/libs/settings'
 import { uri_resolver } from 'api/lib'

src/pages/login/login.js

@@ -6,7 +6,7 @@ import HeadShake from 'react-reveal/HeadShake';
 
 import * as antd from 'antd'
 
-import { session, user } from 'core/helpers'
+import { session, user } from 'core/models'
 
 import verbosity from 'core/libs/verbosity'