Add version command

[nirmalsunny]

Example of running the version command on a local build:

./dist/kubearchinspect_darwin_arm64_v8.0/kubearchinspect version

  _  __     _                            _     _____                           _   
 | |/ /    | |            /\            | |   |_   _|                         | |  
 | ' /_   _| |__   ___   /  \   _ __ ___| |__   | |  _ __  ___ _ __   ___  ___| |_ 
 |  <| | | | '_ \ / _ \ / /\ \ | '__/ __| '_ \  | | | '_ \/ __| '_ \ / _ \/ __| __|
 | . \ |_| | |_) |  __// ____ \| | | (__| | | |_| |_| | | \__ \ |_) |  __/ (__| |_ 
 |_|\_\__,_|_.__/ \___/_/    \_\_|  \___|_| |_|_____|_| |_|___/ .__/ \___|\___|\__|
                                                              | |                  
                                                              |_|                  
Version: 0.5.0-SNAPSHOT-8b62a6d
Commit: 8b62a6d48390293c5b676268cbcf1cf35ace15aa
Built at: 2025-04-30T10:19:06Z

Also updated the readme and formatted other documents.

[sm-powell]

I think the ASCII text banner is overkill, we should just have a simple response like other Kubernetes related tools:

% kubectl version
Client Version: v1.33.0
Kustomize Version: v5.6.0
Server Version: v1.30.11-eks-bcf3d70

% argocd version
argocd: v2.14.11+8283115.dirty
  BuildDate: 2025-04-22T17:03:17Z
  GitCommit: 82831155c2c1873b3b5d19449bfa3970dab9ce24
  GitTreeState: dirty
  GoVersion: go1.24.2
  Compiler: gc
  Platform: darwin/arm64

% helm version
version.BuildInfo{Version:"v3.17.3", GitCommit:"e4da49785aa6e6ee2b86efd5dd9e43400318262b", GitTreeState:"clean", GoVersion:"go1.24.2"}

[nirmalsunny]

I think the ASCII text banner is overkill, we should just have a simple response like other Kubernetes related tools:

% kubectl version
Client Version: v1.33.0
Kustomize Version: v5.6.0
Server Version: v1.30.11-eks-bcf3d70

% argocd version
argocd: v2.14.11+8283115.dirty
  BuildDate: 2025-04-22T17:03:17Z
  GitCommit: 82831155c2c1873b3b5d19449bfa3970dab9ce24
  GitTreeState: dirty
  GoVersion: go1.24.2
  Compiler: gc
  Platform: darwin/arm64

% helm version
version.BuildInfo{Version:"v3.17.3", GitCommit:"e4da49785aa6e6ee2b86efd5dd9e43400318262b", GitTreeState:"clean", GoVersion:"go1.24.2"}

This is subjective. Netshoot has it in its main output, for instance. (https://github.com/nicolaka/netshoot/blob/2908a1a68ab1507fbe122b492151ddfb8db3e150/README.md?plain=1#L105)

[biancabunaciu]

I think the ASCII text banner is overkill, we should just have a simple response like other Kubernetes related tools:

I personally like the banner, I think a lot of new projects/command line tools have this nowadays. I do agree that perhaps the name is a bit too long, so making the banner a bit too long, but I think the design looks nice.

[sm-powell]

Let's go with the banner for now.