Releasing liveness-expiration

Adding new monitor (Safe Liveness Expiration) (#44)

* feat: add liveness expiration base

* chore: clean up metrics + lib + name

* chore: remove the comment address

* chore: add new address

* feat: add the `livenessGuard` + `livenessModule`

* feat: add the missing metrics

* refactor: change some minor and rename variables.

* clean: clean the CLI.go before sending it.

* feat: add `README.md`

* chore: fix the test.

* chore: fix readme.

* feat: add new readme and clean the readme of the projects

* chore: readme fix

* Update README.md

* chore: fix typo and links

* chore: fix typos