feat: add nomination pools support (#1095)

* nomination pools

* chore(deps): updated polkadot-js deps

* feat: support for nomination pools

* update tests

* update nomination pool service

* update test

* remove historicApi as param

* removed historicApi param from nomination pool info service

* lint

* update param info

* update metadata arg, remove legacy docs

* update open-api yml

* update open api refs

* add nomination pools controller to kusama and polkadot controllers

* add comments to nomination pool service fns

* add nomination pool latest e2e test