feat: Implement colored output (with `NO_COLOR` support)

Colours sould only be enabled when the terminal supports them.
For example, when redirecting output or piping to cat, there should be no escape sequences.

I believe there needs to be a condition around the pretty method (or maybe it should be handled by tracing_subscriber::fmt):

https://github.com/stackabletech/stackable-cockpit/blob/fe37d494359d91e32ae309a9f6d382b4a486c5a0/rust/stackablectl/src/main.rs#L31

Examples:

stackablectl --log-level=DEBUG stack list > /tmp/stackablectl.stdout       # plain redirect
stackablectl --log-level=DEBUG stack list | cat > /tmp/stackablectl.stdout # pipe through cat
TERM= stackablectl --log-level=DEBUG stack list > /tmp/stackablectl.stdout # explicitly set TERM to nothing

If I open it in VIM, it looks like this:

Comienza en rust/stackablectl/src/main.rs alrededor del método pretty enlazado y compara si tracing_subscriber::fmt debería encargarse de detectar el terminal. Ejecuta los comandos de stackablectl indicados con la salida redirigida y canalizada, incluido un TERM vacío, y confirma que la salida no interactiva no contiene secuencias de escape, mientras que la salida de los terminales compatibles sigue teniendo color y se respeta NO_COLOR.