Pronotepy

**Changelog**
- Added support for Ile de France ENT
- Added support for exempted courses
- Fixed list index out of range on lesson.content

**Changelog**
- Fixed issue with logging in with an ENT
- Fixed `Grade.coefficient` not being of type `str`

**Changelog**
- Fixed bug where lessons we're not from the correct timespan.

Mostly fixes.

**Changelog**
- Update for a pronote api change
- Fixed ent refreshing
- Added type hints for linters

With this update pronotepy will be able to connect to any pronote that is compressing or encrypting its requests.

**Changelog**
- Added support for compression of requests
- Added support for encryption of requests
- Added the Reunion ENT.

**Changelog**
- Added the AC Reims ENT
`pronotepy.ent.ac_reims`
- Security improvements
- Bug fix