build: add health check to accountant (#11)

* build: add health check to accountant

* build: healthcheck and generic

* fix: comments

* fix: generic accountant

* build: apply to hc

* fix: waveys spelling bee

* fix: empty fee config

* chore: use camel case

* chore: rebase

* feat: change health check to solidity

* fix: enums

* fix: custom flags