FieldDisplay: add cache to reuse field value calculations (#35072)
FieldDisplay: add cache to reuse field value calculations (#35072)

* add timeline value cache

* add timeline value cache

* with console logs

* cleanup

Co-authored-by: Leon Sorokin <48e5a365ba6e1271d050c8311774caa9537531be@gmail.com>
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana