Shapash

**Features**
Refactoring attributes of compile methods and init.
347
Refactoring implementation for new backends
348, 346

**Other Features**
Upgrade Dash version : 343
Improve requirements in setup.py : 337

**Bug fixes**
Fix for Werkzeug compatibility : 342
Fix requirements for python 3.6 : 339

**Features**
Give user possibility to change colour scheme of plots
290, 295

**Features**
- Fix ACV version : 298
- Add ignore warnings to report : 303

This patch release prevent errors from matplotlib version 3.5.1

**Features**
Evaluate the relevance of your explainability using 3 metrics: Stability, Consistency and Compacity
- Stability 234
- Compacity 242
- Consistency 252

New backend added to Shapash : LIME 255

**Bug fixes**

- Multiple lime fixe (263, 265, 267)
- replace parameter for acv backend 262
- fix remove files when generate report fail 250

**Internal**
- Update data loader with urldowload 269

**Features**
- New backend added to Shapash : ACV (245)
- New backend parameter on the compile method on which we can select 'acv'
- [New tutorial to illustrate how to work with Shapash and ACV](https://github.com/MAIF/shapash/blob/master/tutorial/explainer/tuto-expl03-Shapash-acv-backend.ipynb)
- More info about ACV here : https://github.com/salimamoukou/acv00
- lightgbm added to Shapash accepted list of models (232)

**Bug fixes**
- Fix Shapash Report bug when using multiclass (223)
- Fix an attribute in SmartExplainer object (247)

This release fixes bugs in the WebApp (223)