Add Templates to SDK

- Add the Templates class to the SDK

Author: JayTurn

shotstack_sdk/__init__.py

@@ -3,7 +3,7 @@
 """
     Shotstack
 
-    Shotstack is a video, image and audio editing service that allows for the automated generation of videos, images and audio using JSON and a RESTful API.  You arrange and configure an edit and POST it to the API which will render your media and provide a file  location when complete.  For more details visit [shotstack.io](https://shotstack.io) or checkout our [getting started](https://shotstack.io/docs/guide/) documentation. There are two main API's, one for editing and generating assets (Edit API) and one for managing hosted assets (Serve API).  The Edit API base URL is: <b>https://api.shotstack.io/{version}</b>  The Serve API base URL is: <b>https://api.shotstack.io/serve/{version}</b>  # noqa: E501
+    Shotstack is a video, image and audio editing service that allows for the automated generation of videos, images and audio using JSON and a RESTful API.  You arrange and configure an edit and POST it to the API which will render your media and provide a file  location when complete.  For more details visit [shotstack.io](https://shotstack.io) or checkout our [getting started](https://shotstack.io/docs/guide/) documentation.  There are two main API's, one for editing and generating assets (Edit API) and one for managing hosted assets (Serve API).  The Edit API base URL is: <b>https://api.shotstack.io/{version}</b>  The Serve API base URL is: <b>https://api.shotstack.io/serve/{version}</b>   # noqa: E501
 
     The version of the OpenAPI document: v1
     Generated by: https://openapi-generator.tech