* Add move operations to AlignedBuffer

* unit test

* remove ngraph::aligned_alloc and replaced with AlignedBuffer

* allocate a minimum sized buffer is zero size is requested

* move memory alignment value to static constant

* move static constant to constexpr function

* Check if the pointer returned by malloc is nullptr.

* Use ngraph_error.

* Add more pointer checks.

* Replace malloc and free with ngraph_malloc and ngraph_free.

* update licenses for 2019

* style

* Handle zero sized buffer requests

* Removed aligned buffer initialize() and moved allocation to constructor instead

* use line comments instead of multiline comments for license header

* update more

* update new files

* more header updates

* style

* updated to work with llvm 8.1 that tensorflow is built with

* sane extensions on the mac

* not doing rpath on apple

* apply style

* cleanup

* cleanup

* fix all headers to be standalone as far as includes go

* include cleanup

* cleanup includes

* cleanup

* include tester

* wip

* cleanup

* cleanup

* cleanup

* wip

* remove ndarray dependency from ParameterizedTensorView

* get rid of operator= on ParameterizedTensorView

* remove unimplemented ctor

* remove get_parameterized_tensor_view from TensorView class

* cleanup

* the patient will get worse before getting better. remove ParameterizedTensorView from element type

* cleanup obsolete includes

* remove unused file

* move aligned_buffer and cleanup

* cleanup

* wip

* wip

* wip

* cleanup

* cleanup

* wip

* finally got rid of getting a non-const vector from PTV

* wips

* wip

* remove unused

* fix PR comments