M3-cli

* Improved `describe-tenants` command, added ability to show parent tenant for the linked tenant.
* Added validation for allowed values of `cloud-list` parameter for `publish-service` command.
* The `run-instance` command has the following changes:
* The command is now working via the approval process. If instance-related quotas are depleted,
the instances will require a tenant-manager approval to be run. The approvals are based on notifications.
* Added a new `additional-storage` parameter.
* The output is changed. Now, it shows a status of the processed run-instance request and a details message.
* Replaced the `tenant-name` parameter with the `tenant-group` for `hourly-report`, `resource-report`, `subtotal-report` and `total-report` commands.

* Implemented `terraform-upload-template-from-git` command.

* The `multitenant-report` command has the following changes:
* Renamed the `--target-name` parameter to `--region` in the `multitenant-report` command
* The `--region` parameter may be specified for all values of the `report-type` parameters
* Added ability to set tags for several instances, now it is possible to specify several values for `instance-id` parameter.
* Added “required parameters missing” error message in case of command execution without any parameters

* Added environment specific allowed values of the parameters for `hourly-report`,`total-report`,`resource-report` and `subtotal-report` commands.

* The `publish-service` commands have the following changes:
* made the `icon-path` parameter optional
* improved descriptions for the `cloud` and `tenant-name` parameters
* Added to output the `templateType` value in the `list-platform-service-definitions` command

* Fixed outdated cli distribution links in the prompt to update the m3-cli.