Iotedgedev

Changed

- Fix warning about ConfigParser readfp deprecation

Changed

- Fix error caused by latest bcrypt on Azure Pipelines agent

Changed

- Fix configparser error from Azure Cli Core [[426](https://github.com/Azure/iotedgedev/issues/426)]

Changed

- Fix genconfig does not fail when schema validation failed. [[424](https://github.com/Azure/iotedgedev/issues/424)]

Changed

- Fix error when install on Azure Pipelines agent

Changed

- Fix getconfig fails if template contains a placeholder that is not enclosed in quotes.[[414](https://github.com/Azure/iotedgedev/issues/414)]
- Fix wrong instruction to `iotedgedev iothub setup` with extra flags.[[417](https://github.com/Azure/iotedgedev/issues/417)]
- Python 3.8 is not supported due to Azure CLI IoT extension issue [[128](https://github.com/Azure/azure-iot-cli-extension/issues/128)]