Migrated and updated the only test code I found in the plugin, some basic predicted cue functionality, to the test program.
Low-level test runner InitAll helper function now sets GIsRunning to true, NetworkPrediction is checking for this during initialization.
#jira none
#rb brian.bekich, chris.constantinescu
#preflight 6413818332723d4a20e515c8
[CL 24679630 by Ryan Gerleve in ue5-main branch]
