* feat(time-picker): format #235

* feat(mixins): add new parent minxin creator

* feat(sticky): init sticky component

* feat(scroll-nav-bar): init logic

* feat(scroll-nav): init logic

* feat(modules): add sticky, scroll-nav, scroll-nav-bar

* test(sticky): init tests

* test(scroll-bar-bar): init tests

* test(scroll-nav): init tests

* docs(scroll-nav-bar): init doc

* docs(sticky): init doc

* docs(scroll-nav): init docs

* docs(entry): add sticky, scroll-nav-bar, scroll-nav entries

* chore(package.json): better-scroll to 1.12.4

* chore(yarn): yarn update

* feat(slide): support listenScroll

* feat(tabs): add tabs feature

* docs(tabs): tabs's docs

* test(tabs): tabs' unit case

* chore(tabs): the examples of tabs

* feat(textarea): support indicator config

* chore(example): textarea support indicator config

* test(textarea): support indicator config test

* docs(textarea): add indicator config doc

* fix(textarea): check indicator condition

* feat(ImagePreview): init

#198

* test(image-preview): test cases

* docs(image-preview): finish docs

add item param

Changed the text rendering mode in the picker component,
From:
using innerText rendering with <li>{{...}}</li>
To:
using innerHTML rendering with <li v-html="..."></li>

This does not change anything for text items, but allows to insert HTML templates, especially icons.

All the tests seem to be ok.

* feat(index-list): add "options" props

* docs(index-list): update document about props "options"

* refactor: deprecated