Use kube-state-metrics jsonnet dependency #369

experimental/custom-metrics-api: Fix deprecated query for k8s 1.16

Remove preserveUnknownField CRD setting

This allows compatiblity with kubernetes v1.14 and earlier.

minor build improvements

update jsonnet dependencies

Includes prometheus-operator v0.35.1 which should fix the statefulset
crash loop issue #2950

Fails if any command in a pipe fails.  Similar to the
prometheus-operator Makefile.

Also locks jsonnet-bundler to version v0.2.0

Prometheus operator v0.35

Include service in targetdown

jsonnet: add general rules for up/down targets

*: Add default receivers

This patch adds a few out of the box receivers that only need their
notification provider configuration filled in, instead of figuring out
all the wiring for critical alerts for example.

Update components to latest versions

Remove piecharts

*: Add some simple default inhibition rules

*: Throw away unused high cardinality apiserver duration buckets

remove some unused collectors

Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com>

Bump kubernetes-mixins