* add Value OpResult OpOperand class

* add Value OpResult OpOperand class

* fix bug

* fix bug

* add utils

* refine code

* add ptr offset and reset method

* add value impl

* fix bug

* refine comment of ValueImpl

* refine code of OpResult

* refine code of Value

* add some comment

* fix cpu compile bug

* refine code

* add op

* add method for op & test value

* refine unittest

* refine code by comment

* refine code

* refine code

* refine code

* refine code