* AliasMap WIP

* Added liveness info

* WIP

* WIP: Tests

* WIP: LIT tests

* Added knobs for mem optimization pass. More LIT tests

* Revert affine_lowerer change

* More elaborate comment

* Minor fixes

* style-apply

* Rename liveness

* Switch to Analysis framework

* Fix optimization conditions

* Remove LIT test

* style

* Switch to equivalence relationship impl of non-alias relationship

* refined comment

* Switch non-alias to equivalence relationship

* Fix bad merge

* Adding tests. WIP

* Added buffer size tracking and unit-tests

* Added LIT and unit-tests

* Turn optimization ON

* style

* fix unit-tests

* Fix useCount

* Fix copyright and typo

* Refine few comments, remove new lines

* style fix
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>
Co-authored-by: Sang Ik Lee <sang.ik.lee@intel.com>