Refactor

[gilesknap]

This refactors the code into a fashion that is more appropriate for adding an interactive TUI.

• A new base class Commands provides the common command implementations.
• K8sCommands derives from the above and provides K8S specific implementations.
• LocalCommands derives from Commands and provides local docker/podman implementations.
• These classes are initialized with context that is constant like namespace but not with any other args
• Monitor is now given a Command object so it can call the functions in blissful ignorance of the underlying implementation.
• global exception handling is added to the typer cli and will report if a function is not implemented for the current environment.

Frankly, I wrote this inside out initially and this is how it should have been done. The unit tests were a great help in making these changes.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 70.77922% with 45 lines in your changes are missing coverage. Please review.

Project coverage is 77.61%. Comparing base (98ca2e2) to head (fb790a6).

Files	Patch %	Lines
src/edge_containers_cli/cmds/commands.py	54.90%	23 Missing :warning:
src/edge_containers_cli/cmds/monitor.py	29.16%	17 Missing :warning:
src/edge_containers_cli/cmds/cli.py	83.87%	5 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## create_monitor #138 +/- ## ================================================== - Coverage 79.14% 77.61% -1.53% ================================================== Files 15 16 +1 Lines 954 983 +29 ================================================== + Hits 755 763 +8 - Misses 199 220 +21 ```

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[gilesknap]

@OCopping We have a really good test coverage on this project. Do you know of any way of adding tests for the Monitor code so we can keep that quality bar high?

[gilesknap]

I'm going to merge this and release it - then @OCopping's TUI changes will go on top of main.

[gilesknap]

Ooops merged it into create_monitor. Will now do another PR into main.