feat: implement runtime configuration package with multi-org support (#14624)

runtime configuration package
---------

Signed-off-by: Danny Kopping <danny@coder.com>
Co-authored-by: Danny Kopping <danny@coder.com>

coderd/runtimeconfig/manager.go

@@ -0,0 +1,28 @@
+package runtimeconfig
+
+import (
+	"github.com/google/uuid"
+)
+
+// Manager is the singleton that produces resolvers for runtime configuration.
+// TODO: Implement caching layer.
+type Manager struct{}
+
+func NewManager() *Manager {
+	return &Manager{}
+}
+
+// Resolver is the deployment wide namespace for runtime configuration.
+// If you are trying to namespace a configuration, orgs for example, use
+// OrganizationResolver.
+func (*Manager) Resolver(db Store) Resolver {
+	return NewStoreResolver(db)
+}
+
+// OrganizationResolver will namespace all runtime configuration to the provided
+// organization ID. Configuration values stored with a given organization ID require
+// that the organization ID be provided to retrieve the value.
+// No values set here will ever be returned by the call to 'Resolver()'.
+func (*Manager) OrganizationResolver(db Store, orgID uuid.UUID) Resolver {
+	return OrganizationResolver(orgID, NewStoreResolver(db))
+}