examples: adjust tests

examples/jsonnet-snippets/aws.jsonnet

+(import 'kube-prometheus/main.libsonnet') +
+(import 'kube-prometheus/platforms/aws.libsonnet')

examples/jsonnet-snippets/bootkube.jsonnet

-(import 'kube-prometheus/kube-prometheus.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-bootkube.libsonnet')
+(import 'kube-prometheus/main.libsonnet') +
+(import 'kube-prometheus/platforms/bootkube.libsonnet')

examples/jsonnet-snippets/kops-coredns.jsonnet

-(import 'kube-prometheus/kube-prometheus.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-kops.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-kops-coredns.libsonnet')
+(import 'kube-prometheus/main.libsonnet') +
+(import 'kube-prometheus/platforms/kops.libsonnet') +
+(import 'kube-prometheus/platforms/kops-coredns.libsonnet')

examples/jsonnet-snippets/kops.jsonnet

-(import 'kube-prometheus/kube-prometheus.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-kops.libsonnet')
+(import 'kube-prometheus/main.libsonnet') +
+(import 'kube-prometheus/platforms/kops.libsonnet')

examples/jsonnet-snippets/kube-aws.jsonnet

-(import 'kube-prometheus/kube-prometheus.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-kube-aws.libsonnet')

examples/jsonnet-snippets/kubeadm.jsonnet

-(import 'kube-prometheus/kube-prometheus.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-kubeadm.libsonnet')
+(import 'kube-prometheus/main.libsonnet') +
+(import 'kube-prometheus/platforms/kubeadm.libsonnet')

examples/jsonnet-snippets/kubespray.jsonnet

-(import 'kube-prometheus/kube-prometheus.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-kubespray.libsonnet')
+(import 'kube-prometheus/main.libsonnet') +
+(import 'kube-prometheus/platforms/kubespray.libsonnet')

examples/jsonnet-snippets/node-ports.jsonnet

-(import 'kube-prometheus/kube-prometheus.libsonnet') +
-(import 'kube-prometheus/kube-prometheus-node-ports.libsonnet')
+(import 'kube-prometheus/main.libsonnet') +
+(import 'kube-prometheus/addons/node-ports.libsonnet')