basic ParticleTree and ParticleTreeElement classes
added some scripts, latest particle server work
Merge branch 'master' of https://github.com/worklist/hifi into more_on_particle_server

Conflicts:
	libraries/particle-server/CMakeLists.txt
	libraries/particle-server/src/ParticleServer.h
	libraries/particles/src/ParticleTree.cpp
Better drums
Merge branch 'master' of https://github.com/worklist/hifi
first cut at getting voxel server based on octree server
removing dead code
Turn off Sixense (kalman?) filtering, cleanup code
Merge pull request #1310 from PhilipRosedale/master

Improved drumming, (maybe) lower latency hands
removed all dead VoxelServer code, now mostly handled by OctreeServer
clean up server name
actually added the octree-server base class library
removed scripts
tweak
added CMakeLists.txt
added basic particle server renamed voxel packet names to fit standard
added basic particle server renamed voxel packet names to fit standard
tweak to cause rebuild
fix cmake
attempt to fix build buster