[nnc] Support Elementwise Add and Mul operations with weights array (#2628)
* Add support Elementwise Add and Mul operations with weights array
* Support constant operation in soft cpu backend
* Remove ref type from InputParams and InputOps and add them to
Signed-off-by: Pavel Iliutchenko <p.iliutchenk@samsung.com>
Signed-off-by: Pavel Iliutchenko <p.iliutchenk@samsung.com>
Signed-off-by: Pavel Iliutchenko <p.iliutchenk@samsung.com>
* Add refs for all creates
Signed-off-by: Pavel Iliutchenko <p.iliutchenk@samsung.com>