Merge branch 'core_client' into 'master'

.codespellrc

.env

Makefile

docs/developer-guide.md

pyproject.toml

src/aura_engine/base/api.py

src/aura_engine/base/lang.py

src/aura_engine/base/utils.py

src/aura_engine/channels.py

src/aura_engine/client/client.py

src/aura_engine/client/connector.py

src/aura_engine/client/playerclient.py

src/aura_engine/control.py

src/aura_engine/core/channels.py

src/aura_engine/core/client.py

src/aura_engine/core/mixer.py

src/aura_engine/engine.py

src/aura_engine/mixer.py

src/aura_engine/plugins/clock.py

src/aura_engine/plugins/mailer.py