Split Create User (#50502)

* Split Create User

* Use new create user and User from package user

* Add service to wire

* Making create user work

* Replace user from user pkg

* One more

* Move Insert to orguser Service/Store

* Remove unnecessary conversion

* Cleaunp

* Fix Get User and add fakes

* Fixing get org id for user logic, adding fakes and other adjustments

* Add some tests for ourguser service and store

* Fix insert org logic

* Add comment about deprecation

* Fix after merge with main

* Move orguser service/store to org service/store

* Remove orguser from wire

* Unimplement new Create user and use User from pkg user

* Fix wire generation

* Fix lint

* Fix lint - use only User and CrateUserCommand from user pkg

* Remove User and CreateUserCommand from models

* Fix lint 2

pkg/services/user/userimpl/user_test.go

@@ -0,0 +1,41 @@
+package userimpl
+
+import (
+	"context"
+	"testing"
+
+	"github.com/grafana/grafana/pkg/services/org/orgtest"
+	"github.com/grafana/grafana/pkg/services/user"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUserService(t *testing.T) {
+	userStore := newUserStoreFake()
+	orgService := orgtest.NewOrgServiceFake()
+	userService := Service{
+		store:      userStore,
+		orgService: orgService,
+	}
+
+	t.Run("create user", func(t *testing.T) {
+		_, err := userService.Create(context.Background(), &user.CreateUserCommand{})
+		require.NoError(t, err)
+	})
+}
+
+type FakeUserStore struct {
+	ExpectedUser  *user.User
+	ExpectedError error
+}
+
+func newUserStoreFake() *FakeUserStore {
+	return &FakeUserStore{}
+}
+
+func (f *FakeUserStore) Get(ctx context.Context, query *user.User) (*user.User, error) {
+	return f.ExpectedUser, f.ExpectedError
+}
+
+func (f *FakeUserStore) Insert(ctx context.Context, query *user.User) (int64, error) {
+	return 0, f.ExpectedError
+}