* Update cmake files to more modern approach

* disable building libraries that are not required

* handle more build cases

* add versions to backend libs. add start of package target.

* add create_backend to backends

* temporary workaround to tbb not linking correctly with gcc

* install codegen lib

* force tbb to link to the cpu backend so that it is available for codegen

* fix clang build error

* fix warning for codegen build

* update cuda header paths

* change error message for opening backend shared library

* set lib path

* new backend API in graph partition

* update API

* make sure we don't get insidious perf bugs due to doule op::Results
* fix graph_partition tests

Adjust CallFrame argument order to match Function

* the first stab at op::Result

format fixes

disabling logging

op::Result, 2nd attempt

purge stale code

disable logging

fix copyright header

* initial cleanup

* cleanup2

* remove dead code

* result.cpp, fix comments

* fix comment

* Replace using aliases with actual classes

* initial support for hybrid transformer

* add broadcast_vector_rowwise_reversed for hybrid test

* headerc

* get function placement fix

* conv ref test generator graph node in labmda fuction

* rename map_parameter_to_source_node

* type change map_parameter_to_source_node

* use interpreter for numerical derivative

* better comments