* feat[contracts]: add L1ChugSplashProxy

* improve comments slightly

* start adding tests

* add more tests

* make the system pausable

* added another test

* add some extra comments

* Update packages/contracts/test/contracts/chugsplash/L1ChugSplashProxy.spec.ts
Co-authored-by: Maurelian <maurelian@protonmail.ch>

* Update packages/contracts/test/contracts/chugsplash/L1ChugSplashProxy.spec.ts
Co-authored-by: Maurelian <maurelian@protonmail.ch>

* chore: add changeset

* address review feedback
Co-authored-by: Maurelian <maurelian@protonmail.ch>