Attach game session replay to captured crashes

[tustanivsky]

Currently Unreal SDK supports experimental screen recording on a couple of platforms, all built on vendor SDK/GDK features:

• Android - relies on underlying sentry-java SDK, constrained to fixed frame rate
• Xbox - relies on GDK's game DVR APIs. Devkit-only, can't ship to retail

The goal is to attach a user-configurable amount of gameplay footage as a video file to crash reports across all supported platforms, while leveraging Unreal-native facilities (renderer) instead of platform-specific vendor SDKs to keep the implementation uniform.

Related items:

• Add session replay capture settings #1378
• Add experimental session replay capturing for Android #1386
• https://github.com/getsentry/sentry-xbox/pull/136

[linear-code]

UNREAL-145