refactor LinkHifiLibrary, add SetupHifiLibrary macro
add an avatars library and move AvatarAgentData there
remove the unecessary trailing slash when setting root dir
moved AvatarAgentData to AvatarData
move Orientation class to avatars library, constants to SharedUtil
comments to AvatarData and avatar-mixer before pack/unpack refactor
pass ROOT_DIR to IncludeGLM macro instead of MACRO_DIR, include glm for AM
#19261 - Add startup time to the main window title, fit to screen
small code formating fix
Latest work on ViewFrustum
- added support for specifying lens attributes (fov, near, far, ratio)
- changed constructor and calculate methods to be separate
- coding standard cleanup
Tweaks to Camera class
- added lens attributes
- coding standard cleanup
latest View Frustum work
re-work AvatarData to handle body position and rotation
Merge branch 'master' of https://github.com/worklist/hifi into view_frustum_work

Conflicts:
	interface/src/Camera.cpp
	interface/src/Camera.h
	interface/src/main.cpp
a little hackery when in view frustum mode so we can see the frustum without OpenGL clipping us
update agent-mixer to use new AvatarData class
cleaning up of whacky currentCamera experiment
Merge remote-tracking branch 'upstream/master'
resolve conflicts on merge with upstream master
grab jeffrey's changes to Util consts