* Workflow WIP (#1934)

* interface

* add model value

* walk fields

* provider

* stdlin

* tasks

* add stdlib

* Adjust TaskGenerator

* Unified configmap format

* development completed

* fix import cycle

* demo passing

* upgrade action

* add value test cases

* format

* apis

* add context test cases

* fmt

* fmt

* add context to taskGenerator (#1942)

* fix configmap test

* add workflow integration test

* upgrade code

* initial workflow commit

* interface

* add model value

* walk fields

* provider

* stdlin

* tasks

* add stdlib

* Adjust TaskGenerator

* Unified configmap format

* development completed

* fix import cycle

* demo passing

* upgrade action

* add value test cases

* format

* apis

* add context test cases

* fmt

* fmt

* add context to taskGenerator (#1942)

* fix configmap test

* add workflow integration test

* lint code

* improve pkg[value、context] testing coverage

* Improve testing coverage(#1957)

* add license

* add test cases
Co-authored-by: Jian.Li <74582607+leejanee@users.noreply.github.com>
Co-authored-by: Jian.Li <lj176172@alibaba-inc.com>