Changes since last release

Added new (experimental) add-on for Blender v4.0+
Added missing JSON definition for KHR_FRAME_ACCUMULATION
Lifted host-side ANARIArray implementation into helium from helide for use in other devices
Added features to aid helium devices in implementing KHR_DEVICE_SYNCHRONIZATION
Added support for additional extensions in helide:
- KHR_FRAME_CHANNEL_PRIMITIVE_ID
- KHR_FRAME_CHANNEL_OBJECT_ID
- KHR_FRAME_CHANNEL_INSTANCE_ID
- KHR_DEVICE_SYNCHRONIZATION
Fix crash in libanari front end library when ANARI library loading fails
Added new README guide for how to enable a device implementation under libanari
Various robustness fixes + cleanups for remote device
Various CMake cleanups and improvements
- New usage of find_package COMPONENTS for requesting/using optional SDK viewer and code_gen components
Various viewer improvements

What's Changed

fix missing return value on ANARILibrary load error by @jeffamstutz in #154
Fix extension query in CTS by @johguenther in #155
Add a light editor widget for HDRI lights by @szellmann in #156
add advanced CMake option for allowing anariViewer to be installed by @jeffamstutz in #158
Parameter queries by @szellmann in #157
implement prim/obj/inst ID frame channels in helide by @jeffamstutz in #160
Simpler serialization by @szellmann in #159
Cleanup and smaller fixes to the remote device by @szellmann in #161
fix incorrect volume blending in helide by @jeffamstutz in #162
export targets for other libraries built by the SDK by @jeffamstutz in #165
move common helide array impl to helium by @jeffamstutz in #163
CMake updates by @jeffamstutz in #166
Various small improvements by @jeffamstutz in #168
add missing ANARI_KHR_FRAME_ACCUMULATION extension definition by @jeffamstutz in #169
make helium devices more robust to being called by multiple API threads by @jeffamstutz in #170
use a semaphore to make sure array updates and rendering do not overlap by @jeffamstutz in #171
Blender 4.x add-on by @jeffamstutz in #173
additional documentation + remove unused code by @jeffamstutz in #174

Full Changelog: v0.7.2...v0.8.0