M3-cli

* Add `--tag` parameter alias `-tag` to `m3 run-instances` command

* Improve readability of commands:
* m3 upload-script --help, m3 describe-script --help, m3 delete-scripts --help

* Implement fixes related to commands `m3 delete-scripts` and `m3 upload-scripts`:
* Change `"maestro-user-identifier"` from `SYSTEM` to `UNKNOWN`
* Fix `"api_param_name"` for command `m3 delete-scripts`
* Remove `.` from the list of allowed symbols for the `-scname` parameter in
`m3 upload-scripts` command
* Enhance help documentation for `m3 upload-scripts` command

* Add `--script` parameter alias `-scname` to `m3 run-instances` command

* Update the `payload` to include `dtoList` and `serviceName` in
`get_interactivity_option` method for the action `VALIDATE_SERVICE_VARIABLES`
in the `m3 activate-platform-service` command

* Add command `m3 billing-region-types`
* Improve the table view for the `m3 billing-region-types --table` command.