Add a post execution summary of what lambo has done

[jonsugar]

Once all steps have completed, show the user a summary of what has been completed.

Consider running lambo new my-app --full -v. A lot of output will quickly scroll by and the user may miss warnings or other useful feedback from Lambo.

The idea here is to surface any such messages while also reinforcing the steps successfully completed.

for example (exact format TBD):

⋮
Completed successfully with warnings:

[ WARN ] Your MySQL server is not running so I skipped database creation.
         Start your MySQL server and add the database manually.
[ WARN ] Your MySQL server is not running so I skipped database migration.
         Start your MySQL server and run database migrations manually.

Summary
=======

✓ Created new project 'foo' at ~/Sites/foo
✓ Valet is serving your site securely at https://foo.test
✓ Inertia scaffolding installed
✓ All javascript dependencies installed and compiled.
✗ Database migrated

Done, happy coding!
Lambo is bought to you by the lovely folks at Tighten.