zero out members, useful after emptying via move or reset

---- Animation metrics ----

---- Input latency metrics ----

---- Instrumented metrics ----

Helper dedicated to computing msBetweenDisplayChange, matching legacy ReportMetricsHelper behavior.

---- Simulation metrics ----

---- CPU/GPU metrics ----

Helper dedicated to computing msDisplayedTime, matching legacy ReportMetricsHelper behavior.

---- Display metrics ----

TODO: factor this logic out because it is used by kproc and appcef

data store access

Create/open a directory named 'leafName' as a child of 'parent' If running elevated, additionally undertake the following defensive measures: If the e