support group/name input for trace command

[plumbis]

What problem are you facing?

Today the crossplane beta trace commands requires group [space] name. It doesn't support / style outputs provided by some Kubernetes outputs like kubectl get claims

How could Crossplane help solve your problem?

Support input of group/name resource like crossplane beta trace cluster.aws.platformref.upbound.io/platform-ref-aws

[phisco]

I actually implemented it at first and then dropped it because I couldn't come up with a not so confusing help message for the allowed syntaxes 😂 I'll open a pr with the code and ask your help on the help messages.

[plumbis]

I would just leave the help text as is and just accept the input. We can mention in the CLI docs that both inputs are supported.