Adding the Batch class to GPU
Adding the Batch class to GPU and fixing the compilation issues
startign to record all the gl commands in the Batch
FIrst working version of the GLBatching system introduced in the MOdelrendering path
qerge branch 'master' of https://github.com/highfidelity/hifi into temp0

q Please enter a commit message to explain why this merge is necessary,
Introduce the gpu::Batch for the full Model::render call
Merge branch 'master' of https://github.com/highfidelity/hifi into temp0
fix endline on Batch.cpp
fix suseless spaces around parameters in functions
Merge pull request #3633 from samcake/temp0

Record graphics API commands in a "gpu::Batch" to separate traversal from rendering