* batch dot bprop WIP.

* WIP.

* testing.

* clean up debug code.

* comments and var name change.

* clean up.

* format style, batch dot differentiable pass.

* removed debug output.

* added unit test to autodiff, refactored make_function -> make_function_from_file.

* fixed build warning.

* fixed gpu build error.

* clang format fix.

* all test_tools.cpp to find SERIALIZED_ZOO

* remove cmake redef.

* fix unused macro.

* making test cpu only.

* testing build var

* macro test

* verbose makefile test

* style fix

* verbose make

* test/util needs test/models.

* removed debug output.

* refactor fusion type.

* refactor fusion type.