Tootgroup.py

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ADDED

- Compatibility with GoToSocial (tested) and possibly other Fediverse services (untested).
- OAuth support for registering the tootgroup.py application with servers (needed for GoToSocial but also works with other
services)

CHANGED

- There are no more retries while registering the application with username/password. Instead an OAuth fallback is invoked.
If this also fails, you have to retry manually.

FIXED

- [GoToSocial](<https://github.com/oe4dns/tootgroup.py/issues/10>)

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CHANGED

- Modernised build setup and switched from setup.py to pyproject.toml (still using setuptools as its backend) Also provide wheel distribution.

----------------

CHANGED

- Switched from appdirs to platformdirs dependency. While the former is not officially deprecated, maintainance seems to have stopped
while the platformdirs fork is in active development.

----------------

CHANGED

- Friendica 2022.06 broke compatibility in a sublte way. To make this more robust, a second repost trigger has been added. From now on
*mention ist supported alongside the existing !mention method. Friendica only supports the new style whereas Mastodon and Pleromoa
support both!

----------------

ADDED

- Group members can now also post from Friendica.

----------------

ADDED

- Pleroma is now officially supported. It mostly worked before, but it will be tested alongside Mastodon from now on.

FIXED

- [Pleroma: Not all groups members are returning from masto.account_following function call](<https://github.com/oe4dns/tootgroup.py/issues/7>)