Cleans up the L2CrossDomainMessenger tests in the same manner as
previous cleanup PRs.
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

First commit in a series of commits to clean up the contract tests. Made
a deploy helper function to remove some ugly nested awaits. Also
generally starting to remove unnecessary Factory objects.
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

* feat: add contracts

* fix: configure tsconfig and replace build => dist

* chore: remove CI files

* chore: use monorepo tslint / prettier

* Use core-utils where applicable

* Further reduce utils

* Update ovmCREATEEOA.spec.ts
Co-authored-by: Mark Tyneway <mark.tyneway@gmail.com>

* Fix revert string

* Fix a few tests

* Apparently ethers is broken

* Fix last failing test

* More reliable codesize test

* Add gas test output for em.run()

* Move gas helper code to util'

* Use GasMeasurement class in SM gas spec

* Add expect statements

* remove only()

* Address review comments

* add newline at eof

* remove .only
Co-authored-by: Kelvin Fichter <kelvinfichter@gmail.com>

* Added fix for error in StateTransitioner

* Added tests for some precompiles (#14)

* Added tests for some precompiles

* Cleanup build process (#15)

* Cleaned build and added typechain

* Linted files