Update azure-pipelines.yml for Azure Pipelines

migrate to net core 8

Migrate runtime to net core 8

Remove tx functions

* removed tx rx functions
* Added buffered IO support
* Updated the readme
* Updated version numbers

Merge da02628 into ee45212

Updated enter and exit condition labels

Update logging

* Updated logging
* Updated log message
* Updated version number

Updated package version

updated default timeout

Added readme to package

Refactor serial port open (#9)

* Refactored the open method
* Refactored timeout