Bump version to 2.0.0 (Fast-64#146)

Bump version to 1.0.1 (Fast-64#142)

Updater (Fast-64#91)

* Unconfigured updater from CGCookie/blender-addon-updater

Using revision b12d8e202b55a4b7191fccc4e74a77f0cbc45a46 from 2021-06-21 (latest as of 2022-04-04).
https://github.com/CGCookie/blender-addon-updater/tree/b12d8e202b55a4b7191fccc4e74a77f0cbc45a46

* Configure and setup updater

* updater really wants a version number to work, welcome to Fast64 1.0.0

* Add updater's folder to .gitignore

* Add .gif files to `overwrite_patterns`

* Revert "Add updater's folder to .gitignore"

This reverts commit f30cd4d.

The updater's folder name depends on the name of the folder fast64 is installed in, which can be anything

* Add updater instructions and notes