Refactorings for `build` and `check` (#116)

* Make naming consistent

* Fix number of steps displayed in `check`

* Move base name function to utilities

* Shift logic to `BuildCommand` and `CheckCommand`

* Consistent naming: GenerationResult ➜ BuildResult

* Consistent naming: GenerateArtifacts ➜ BuildArtifacts

* Update comment

* Move comment to struct

* Remove Note section from comment