Pass Grafana and Tracing links to Kiali

See this comment and issue there - https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/588#note_363667

Currently a customer has to override the default values to have the external links populate properly in Kiali. It would be ideal if these links were "auto-populated" by BigBang based on the hostname/VS overrides.

This should not require any package changes, most/all changes will be in the BB Kiali values.

Note that there are multiple ways to set/affect the VS for Grafana and Jaeger. It can be done just by overriding the hostname and also by overriding the "prefix" for them (i.e. trace.{{ .Values.hostname }} vs tracing.{{ .Values.hostname }})

Done:

• Values "passed" down to kiali for the VS addresses
• Helm template/install to verify that a modified hostname and VS for grafana and jaeger populate to the Kiali links/values

NOTE: If this becomes unwieldy due to numerous potential VS addresses it would be OK to just document the required values BUT that would require justification.

This also closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/588