* Temp.

* Put all the dummy files.

* Remove some compile errors.

* WIP: Add gather and gather_nd kernels.

* Temp save.

* Update comments for gather.

* Implement reference gather.

* Validate and infer shape.

* Style.

* Fix compile issues.

* Add serializer support.

* Fix interpreter compilation issues.

* WIP: Add UT

* WIP: Add UT

* gather_nd UT passing.

* Fix gather with no axis.

* Fix gather issue.

* Update unit_test.manifest for backends and add gather, gather_nd  support for generic cpu.

* Add type_prop tests.

* Add CPU builders.

* Fix codegen.

* Make some UT numbers more readable.

* Style.

* Update Copyright Year

* Update Copyright Year

* Fix Typo.

* Remove unused variable.

* fix nv gpu build error

* Fix intel gpu compilation.

* Add basic docstring.

* Allow 1D indices for gather_nd.

* Allow scalar indices for gather.

* Update unit_test manifest files.

* Style.

* Add indices element type check and add failing type_prop checks.

* Update docstring.

* Fix incorrect test names in unit_test.manifest

* [ONNX] Support for Gather op

* Remove unneeded broadcast

* Remove unused include

* Set correct default value for axis