feat: Chainbound x Artemis integration (#59)

* feat: added fiber client crate

* wip: chainbound crate rewrite

* feat: echo integration (missing test)

* fix: boolean order

* chore: basic lib test

* chore: fixed tests

* chore(docs): update example

* chore(docs): added echo links

* feat: completed crate docs

* feat: added echo actions, fixed example script

* chore: small fixes

* fix: json serializing

* feat: new echo bundle type