* - Moves some fused convolution ops to core FusedOps
- Adds support for decomposing and replacing multi-output FusedOps
- Adds query callbacks to FusedOpDecomposition to check if a FusedOp is
  supported by a backend
- Adds core fusion patterns for FusedOps
-

* style fix

* Added comments on FOP_FUSIONS

* gpu convolution 1d bug fix (#2741)

* Fix bug with dex-only compilation and addressed PR comments