Podman support in scripts

[mattw-nws]

Enable the use of Podman in place of Docker, primarily to support environments where Docker is not permitted.

Some additional docs are probably needed if there's interest in this, but making it available since I needed to make this modification for our environment.

Additions

• Adds -p option to substitute podman for docker command in scripts

Removals

• NA

Updates

• Adjusts language in some places subbing "container" for "docker" (e.g. "... image")

Testing

Method

Ran through workflows with a Podman system... not all combinations probably tested well. This might be a best-effort-to-unsupported feature.

Screenshots / output snippets

$ ./guide.sh -h
Usage: guide.sh [arg ...]
Options:
  -d [path]: Designates the provided path as the data directory to import into the visualizer.
  -h: Displays usage information, then exits.
  -i [image]: Specifies which Docker image of NGIAB to run.
  -p: Use Podman instead of Docker.
  -r: Retains previous console output when launching the script.
  -t [tag]: Specifies which Docker image tag of NGIAB to run.

→ Cleaning up resources...
  ✓ Cleanup completed.

Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)

Testing checklist

Target Environment support

• Windows (wsl)
• Linux
• MacOs (apple silicon)

[benlee0423]

@mattw-nws
What you proposed here works in your environment?