Importing fixes from Model branch to the gpu library
Merge branch 'master' of https://github.com/highfidelity/hifi into temp0
Disabling glDebug
Add the Model library
Merge pull request #3992 from samcake/temp0

Add the BufferView class in gpu::Resource
merging with upstream master and origin temp0
fix typo in cmakelists
fixed pointers which were using 0 instead of NULL and syntax in resource.h
fix end line typo
adding scribe tool
add comments to Transform.h
Merge pull request #3998 from samcake/temp1

Adding the model library
Merge branch 'temp1' of https://github.com/samcake/hifi into temp0
FIx typos
cleaning scribe main and checking naming
fix runaway backup bug
Merge pull request #4000 from ZappoMan/backupBugFix

fix runaway backup bug
Fix for model uploading to work

Fix for model uploading to work. The deleted elements were causing an
error when trying to upload models.
Merge pull request #4001 from cozza13/20244

CR for Job #20244 - Fix model upload on Editentities
guards for NULL collisions, possible fix to fountain crash