Inclue craft project config in starter project

[joshuapease]

Committing the Craft project config for the site would enable the following

• Running ddev craft install will also auto-install all of the plugins (instead of that being a separate step after installing Craft.
• We can pre-configure mail to use STMP and route all messages through mailpit locally (prevents accidental emails to users)
• We can configure default Volumes and S3 configs.
• We can include a starter page builder and blocks.

Challenges

• The site and site group names will need to be edited to match the name of the new project. We can most likely automate this as part of the Composer post-create-project-cmd