Added Disconnect with Will Message

[novakroSICKAG]

Version 1.1.0

New features

Added optional setting to enable the MQTT client to Disconnect with Will Message. If enabled, a Will Message will be sent before intentionally disconnecting.

Improvements

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Bugfix

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Following tasks were checked

• Module is coded and structured according to the "Developing guideline for modules" described within the CSK documentation
• All functions/events/parameters are documented within the manifest documentation
• The manifest description of the main CROWN includes main information about the purpose of the module and how to use it in general
• API docu based on the manifest was created and stored within the "docu"-folder of the repository
• Internal LUA code documentation exists for variables and non served functions
• All relevant infos are logged via the SharedLogger 'ModuleLogger'
• Module supports persistent data feature based on 'CSK_Module_PersistentData'
• Module supports user management based on 'CSK_Module_UserManagement'
• No open "ToDos" within the code or at least clearly explained comments why they exist...
• "Version" key in app manifest was updated following semantic versioning (and use '0.x.y' for test / experimental modules which are not yet ready to be officially released)
• Meaningful IDs used for UI elements
• Module was tested on an AppSpace device (at least on SICK AppEngine) with no error message
• README.md is up to date (incl. info of device + firmware the module was tested with)
• CHANGELOG.md is up to date

[golluroSICKAG]

Thx for your contribution! It looks very well done!
I made some edits and created a PR to your repo
Please merge it to your repo if these changes are ok for you. After that I will merge it to the official repository.
Thx again!

[novakroSICKAG]

I merged your changes to my repo. Thank you for your cooperation!