Introduce comparison op pattern. Binary ops: eq, ge, gt, le, lt, ne (#6013)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/6013

- ge:  1.1 M -> 15 K   (40x reduction!)
- gt:   1.1 M -> 15 K
- lt:     1.1 M -> 15 K
- lt:     1.1 M -> 15 K
- ne:   511 K -> 15 K
- eq:  504 K -> 15 K
ghstack-source-id: 246985121
exported-using-ghexport

Reviewed By: swolchok

Differential Revision: D63914950

fbshipit-source-id: fb3e9109d05437a5955ef5505feef6dbac35d939