Added Dense and Conv BatchEnsemble layers along with unit tests and example on MNIST classification using LeNet5#4

Merged

DwaraknathT merged 3 commits intomainfrom

Sep 7, 2021

Commits on Aug 30, 2021

Added Dense and Conv BatchEnsemble layers along with unit tests and example on MNIST classification using LeNet5
DwaraknathT
committed

Commits on Aug 31, 2021

Merged dense batchensemble forward passes for rank>1 and rank=1; Fixed conv batchensemble unit test
DwaraknathT
committed

Commits on Sep 1, 2021

Changes:
DwaraknathT
committed