fix artisan.plus controller

- fixes Issue artisan-roaster-scope#1054

- lib updates

dog food

- downgrade setuptools to prevent a conflict with py2app

- upgrade pyobjc again

- adds custom blend editor for artisan.plus (closes Issue artisan-roa…

…ster-scope#760)

- use dot as decimal separator everywhere
- monkey patches MPL 3.5.1 _formlayout.py:ColorButton
- allow to change simulation speed on restarting paused simulator using modifier keys
- set dirty flag on minieditor updates

- adds custom blend editor for artisan.plus (closes Issue artisan-roa…

…ster-scope#760)

- use dot as decimal separator everywhere
- monkey patches MPL 3.5.1 _formlayout.py:ColorButton
- allow to change simulation speed on restarting paused simulator using modifier keys
- set dirty flag on minieditor updates

fix typo in Linux build requirements

fixes keychain handling on linux

ping

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