-Previous code said that the first PIE world was allowed to track the HMD. However sometimes the first PIE world is a dedicated server. Now the first non-dedicated-server PIE world gets HMD tracking.
-This fix is a bit ugly to fit with hotfix rules. I think it would be better to cache this value somewhere, but didn't see anywhere that was not a public header.
#jira UE-147360
[REVIEW]
#rb Arciel.Rekman
#preflight none
#ROBOMERGE-AUTHOR: jeff.fisher
#ROBOMERGE-SOURCE: CL 19929072 in //UE5/Release-5.0/... via CL 19930613
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v943-19904690)
[CL 19932812 by jeff fisher in ue5-main branch]
This should saves around ~1.5 Mb to ~3 Mb at runtime with ~50000 packages
Added a new core define UE_STRIP_DEPRECATED_PROPERTIES that could be used to wrap deprecated properties and strip them to regain memory when a projects becomes compliant. this can be set in the project target file
Deprecated most public properties from UPackage and created accessors for them
#rb PJ.Kack
#jira UE-138957
#preflight 61f17a6f7266f4e79bd62601
#ROBOMERGE-AUTHOR: francis.hurteau
#ROBOMERGE-SOURCE: CL 18738937 in //UE5/Release-5.0/... via CL 18739524 via CL 18741373
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v903-18687472)
[CL 18742135 by francis hurteau in ue5-main branch]
