Vizabi WS reader

Example of adding the compiled WS reader to a web page after vizabi script

<script src="libs/vizabi.min.js"></script>
<script src="libs/vizabi-ws-reader.js"></script>

Example of integrating WS reader into vizabi

//WS reader integration
var wsReader = WsReader.WsReader.getReader();
Vizabi.Reader.extend("waffle", wsReader);

Example of configuring WS reader: pointing it to a certain dataset#branch and WS enpoint
dataset_access_token is only required for datasets marked as private during import via ws cli
assetsPath is only requred if we want to use asset queries in vizabi tool
dataset is only required when the dataset we want to request is differnet from the one set in WS as default dataset
#branch in dataset can be ommitted, then the missing branch is equal to #master

VIZABI_MODEL.data = {
  "reader": 'waffle',
  "path": 'https://waffle-server-dev.gapminderdev.org/api/ddf/ql',
  "dataset": 'Gapminder/ddf--my--dataset--repo#branch',
  "assetsPath": 'https://import-waffle-server-dev.gapminderdev.org/api/ddf/assets/',
  "dataset_access_token": "aaaaaaabbbbbbbccccccdddddddeeeeeefffffff11112222333444556677890"
};