Add rudimentary CLI implementation

[affenull2345]

Linked Items

Fixes N/A

Description

This is an improved version of #17 . Add a basic implementation of cobbler-tftp's CLI:

Usage: cobbler-tftp [OPTIONS] COMMAND [ARGS]...

  Cobbler-TFTP - Copyright (c) 2022 The Cobbler Team. (github.com/cobbler)

  Licensed under the terms of the GPLv2.0 license.

Options:
  -h, --help  Show this message and exit.

Commands:
  print-default-config  Print the default application parameters.
  start                 Start the cobbler-tftp server.
  stop                  Stop the cobbler-tftp server daemon if it is running
  version               Check cobbler-tftp version.

TODO:

• [ ] add tests

Behaviour changes

N/A

Category

This is related to a:

• [ ] Bugfix
• [X] Feature
• [ ] Packaging
• [ ] Docs
• [ ] Code Quality
• [ ] Refactoring
• [ ] Miscellaneous

Tests

• [ ] Unit-Tests were created
• [ ] System-Tests were created
• [ ] Code is already covered by Unit-Tests
• [ ] Code is already covered by System-Tests
• [ ] No tests required