Add pytato.squeeze (#187)

* Add pytato.squeeze

* add test

* use are_shape_components_equal

Co-authored-by: Kaushik Kulkarni <15399010+kaushikcfd@users.noreply.github.com>

* fix

Co-authored-by: [6~ <inform@tiker.net>
Co-authored-by: Kaushik Kulkarni <15399010+kaushikcfd@users.noreply.github.com>