Update the Platform Engineer dashboard with gateway/policy status information

[david-martin]

• This will primarily be about showing the state of Gateways and Policies, and will depend on separate work (ISSUES IN STATUS EPIC TBD).
• Update the gateway-api-state-metrics project to have example config for reporting any new status information as metrics. Depends on ISSUES IN STATUS EPIC TBD

May also depend on Kuadrant/docs.kuadrant.io#72

In OpenShift, it can be useful to have a direct link to the resource (e.g. RateLimitPolicy) so it can be viewed in full through Openshift console.

The dashboard should be included in the unified kuadrant release process such that:

• it can be sourced at a specific version
• it can be imported directly as is, or taken and modified (the raw json/yaml is easily available)

Dashboards will have tooltips on the panels created, to aid users on what the panels are meant to show to allow them gain more knowledge to be able to customize them.
Add new metrics & labels/dimensions to kuadrant components where needed to support the above dashboards

Recommendation is to follow through the API Quickstart and modify the dashboard in grafana directly.
Then export it as json when changes have been made.

[david-martin]

Moved out of API Observability epic.
This can land as part of the 'Status' epic when that is fleshed out.