This modifies a prior migration which is typically forbidden,but because we're pre-production deployment I felt groupingwould be helpful to future contributors.This adds database functions that are required for the provisionerdaemon and job queue logic.

Adds a projectparameter package to compute build-time projectvalues for a provided scope.This package will be used to return which variables are beingused for a build, and can visually indicate the hierarchy toa user.

Provisionerd communicates with coderd over a multiplexedWebSocket serving dRPC. This adds a roughly accurate protocoldefinition.It shares definitions with "provisioner.proto" for simpleinterop with provisioners!