* Add Misc/GBuffer

* Add EnqueueRenderSceneImmediateWithGBuffer.

* Modified ASceneCaptureSensor to allow gbuffer recording.

* Minor GBuffer progress.

* More GBuffer changes.

* Removed unnecessary files.

* Add FRHITexture* functions to FPixelReader + temporarily disabled non-gbuffer rendering in ASceneCaptureSensor.

* Add missing FPixelReader functions.

* Minor changes (Switching to Windows).

* Remove FRHITexture functions from FPixelReader, added the file ImageUtil.

* Remove FRHITexture functions from FPixelReader, added the file ImageUtil. (2)

* Added API to listen GBuffer data.

* Added gbuffer serializer classes

* Temporarily remove ViewRect hack.

* Add USceneCaptureComponent* derived classes.

* Disable USceneCaptureComponent*_CARLA and add initial FRHIGPUTextureReadBack-based code.

* Fix and re-enable custom SceneCaptureComponents.

* Fully switch to FRHIGPUTextureReadback.

* Remove unnecessary call to FlushRenderingCommands.

* Minor API changes.

* Add support for PF_DepthStencil in ImageUtil.

* More API progress...

* More API progress... (2)

* Removed testing code.

* Minor changes for testing.

* GBuffer API fixes.

* Improve GBuffer capture code.

* Fixed SceneDepth transfer issues and added SceneStencil, CustomDepth and CustomStencil to the GBuffer capture.

* Fix compilation error due to the usage of C++17 features.

* Removed major memory leak and added manual_control_gbuffer.py.

* Fixed a silly mistake.

* Minor changes to manual_control_gbuffer and SceneCaptureSensor.

* Fix compilation error on some versions of Ubuntu.

* Disable TAA when reading GBuffers to avoid jitter.

* Improve memory usage.

* Progress towards automatically detecting when a GBuffer stream is unused.

* Fix includes in SceneCaptureSensor + minor change in manual_control_gbuffer.py

* Progress on automatically detecting which GBuffers aren't needed.

* Remove unneeded __declspec.

* Revert ASensor changes + fix tutorial_gbuffer.py

* Update CHANGELOG.md

* Apply requested changes for the PR, add gitignore for the file OptionalModules.ini and add a GBufferTextureID enum to the Python API.

* Remove OptionalModules.ini.

* Fix indentation.

* Fix indentation (2).

* Fix indentation (3).

* Add documentation and more indentation fixes.

* Remove commented includes.

* Add missing line break.

* Fix memory leak + remove unneeded files.

* Add .uproject again, fix EngineAssociation.

* Remove unneeded ENQUEUE_RENDER_COMMAND.

* Fix manual_control_gbuffer.py.

* Add `stop_gbuffer` to the Python API.

* Minor fixes.

* Fix performance bug.

Previously, when a client requested a gbuffer that is unused it would stay open, even after stopping it explicitly. This commit fixes this issue.

* Fix indentation.

* Add missing braces, more indentation fixes and simplify some of the code.

* Update sensor.yml docs.

* Update docs.

* Remove unnecessary UE_Log + changed one verbosity level.

Co-authored-by: Axel <axellopez92@outlook.com>
Co-authored-by: Axel1092 <35765780+Axel1092@users.noreply.github.com>