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Updated the release notes for v3.2.0.

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# [3.2.0] - 2022-02-21
This minor release brings several fixes, performance improvements and new features to the rendering, physics and audio APIs.
### Source code maintenance
- Cleanup sources, remove spurious hg namespace specifiers and run clang format on affected sources.
- Updated the GLFW CMake to improve the resolution of the library path on Linux.
- Updated ImGui to v1.87.
### Engine
- Implement model load queuing (see `ProcessModelLoadQueue`, `ProcessLoadQueues`, `LSSF_QueueTextureLoads`, `LSSF_QueueModelLoad`).
- Support replay and streaming of OGG files (see `LoadOGGSoundFile`, `LoadOGGSoundAsset`, `StreamOGGFileStereo`, `StreamOGGAssetStereo`, `StreamOGGFileSpatialized`, `StreamOGGAssetSpatialized`).
- Added a `Mat4` copy constructor.
- Added missing declarations for `LoadImage*` functions.
- Added a flag to prevent changing the current camera when loading a scene, if the current camera points to a valid node (see `LSSF_DoNotChangeCurrentCameraIfValid`).
- Added an `is_file` field to the structure returned by `GetFileInfo`.
- Simplify scene binary loader, removed versioning code:
- Removed unused members from the `RigidBody_` struct.
- Reduced memory footprint of `RigidBody_` to 6 bytes.
- Performance improvements on multiple scene loading (through instances).
- Added a profiling API (see `BeginProfilerSection`, `EndProfilerSection`, `EndProfilerFrame`, `CaptureProfilerFrame`, `PrintProfilerFrame`).
- Added a Videostream plugin interface (see `MakeVideoStreamer`).
- Fixed scene animation garbage collection.
- Fixed a bug with Unicode support in assetc.
- Fixed an issue with trailing slashes on Linux in the assetc command line.
### Rendering
- Fixed an issue in the viewport computation when upscaling half buffers in the AAA rendering pipeline.
- Added a `z_thickness` param to the AAA rendering pipeline.
- Added a series of cubemap render functions.
- Implemented and documented [all supported pipeline program features](https://www.harfang3d.com/docs/3.2.0/man.pipelineshader/).
### Physics
- New functions to lock translations and rotations in a more consistent way with the Bullet API:
- `NodeSetLinearLockAxes`, `NodeSetAngularLockAxes` replaced by `NodeSetLinearFactor`, `NodeSetAngularFactor`.
- `NodeGetLinearLockAxes`, `NodeGetAngularLockAxes` replaced by `NodeGetLinearFactor`, `NodeGetAngularFactor`.
- Added AddTorque/AddTorqueImpulse to physics API:
- `NodeAddTorque`, `NodeAddTorqueImpulse`
- Simplified the physics collision/contact query code, unified collision query API for `NodeCollideWorld` and `StepSimulation` (see `CollectCollisionEvents`).
- Implemented `NodeTeleport` in Bullet physics.
- Improved the transform synchronization logic, set node world transform using the fast scene path (see `SyncTransformsFromScene`, `SyncTransformsToScene`).
- Added proper motion interpolation in Bullet physics synchronize to scene.
- Added missing functions to create all supported collision shape types.
### Documentation
- Added a missing reference to the requirements page in the main index.
- Improved the `LoadSceneXXX` functions documentation.
- Fixed both Lua and Python code snippets.
- Improved the clarity of functions using bitflags by adding support for constants group in the documentation generator.
- Update of ownership and views manual pages.
# [3.1.1] - 2021-12-31
This minor release brings several fixes, mainly in the Bullet Physics API.