Handle config files with name `config.jsonnet`, `config.json` and
`config.yml` and take the first from the repository in this order
For a jsonnet file execute it and use the generated output as the config
Additionally don't save a CloneURL field inside the project type.
If in future some git source doesn't provide a clone url we could just calculate
it from project.RepoPath or call the remote api to retrieve it.
Add the ability to define a run with a setuperror phase.
When the run setup has errors client could submit a run with a list of setup
errors. In such case the run will be created in the setuperror phase.
Setup errors are currently generated by the webhook receiver and the run service
when it checks the run config for possible issues.
* Use just RunConfig
* Use StaticEnvironment vs Environment in RunConfig to distinguish between env
that won't change at run recreation from env that could change at every
recreation
* The RunCreate api will just receive the runtasks instead of a runconfig (more
right)
