HDR - 1.4.2

Includes compatibility fixes for UE 5.8

Bug

HDR-351 Investigate and fix the loudness issue with tree loops

HDR-373 Editor audio device HDR Envelope can get stuck paused forever if a user pauses a PIE session and then ends it without resuming first

Task

HDR-371 Only create HDR Metasound watcher objects for Metasound sources

HDR-372 Add settings and documentation shortcut buttons in HDR editor windows