Simplify experiment replicaset names. Surface experiment images to CLI

[jessesuen]

1. Removes the pod template hash from replicasets created from experiments
2. Surface any running images of experiments to the CLI

[codecov]

Codecov Report

Merging #274 into master will increase coverage by 0.19%.
The diff coverage is 89.83%.

@@            Coverage Diff             @@
##           master     #274      +/-   ##
==========================================
+ Coverage   83.68%   83.88%   +0.19%     
==========================================
  Files          63       63              
  Lines        5548     5553       +5     
==========================================
+ Hits         4643     4658      +15     
+ Misses        665      655      -10     
  Partials      240      240

Impacted Files	Coverage Δ
pkg/kubectl-argo-rollouts/info/info.go	100% <100%> (ø)	⬆️
pkg/kubectl-argo-rollouts/info/replicaset_info.go	79.41% <100%> (+0.3%)	⬆️
experiments/replicaset.go	81.45% <100%> (-0.15%)	⬇️
pkg/kubectl-argo-rollouts/info/experiment_info.go	67.92% <66.66%> (+4.15%)	⬆️
pkg/kubectl-argo-rollouts/info/rollout_info.go	85.62% <90.24%> (+3.26%)	⬆️

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[dthomson25]

LGTM