SDK updated to .NET8.

Minor coded fixes

minor code fixes

MQTT plugins improved

Minor fixes

Prijects fixed to append dependent DLL to output

MQTT plugins added

Plugin interface extended to allow text/audio command injection.

Rus readme fixed

Plugin can now inject text/audio message.

Update README_rus.md

Update README.md

English plugin settings samples attached

Massive changes to allow free PVS-Studio process the project.

Google calendar plugin safety improved