- moving interfaces to engine from plugins
- get rewind debugger debug view interface out of GameplayInsights plugin
- change view system to use modular features instead of having it's own registration management
[REVIEW] jurre.debaare
#ROBOMERGE-SOURCE: CL 16986089 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v838-16927207)
[CL 16986111 by keith yerex in ue5-release-engine-test branch]