Move SignedInUser to user service and RoleType and Roles to org (#53445)

* Move SignedInUser to user service and RoleType and Roles to org

* Use go naming convention for roles

* Fix some imports and leftovers

* Fix ldap debug test

* Fix lint

* Fix lint 2

* Fix lint 3

* Fix type and not needed conversion

* Clean up messages in api tests

* Clean up api tests 2

pkg/models/user_auth.go

@@ -3,6 +3,7 @@ package models
 import (
 	"time"
 
+	"github.com/grafana/grafana/pkg/services/org"
 	"github.com/grafana/grafana/pkg/services/user"
 	"github.com/grafana/grafana/pkg/setting"
 
@@ -31,7 +32,7 @@ type ExternalUserInfo struct {
 	Login          string
 	Name           string
 	Groups         []string
-	OrgRoles       map[int64]RoleType
+	OrgRoles       map[int64]org.RoleType
 	IsGrafanaAdmin *bool // This is a pointer to know if we should sync this or not (nil = ignore sync)
 	IsDisabled     bool
 }