Better sp with indent

This patch changes indent for `sp-with`/`sp-with-tag` and makes it compatible with macros such as `with-temp-buffer`.

Before:

```cl
(sp-with 'python-mode
         (sp-add-local-ban-insert-pair "`"))
```

After:

```cl
(sp-with 'python-mode
  (sp-add-local-ban-insert-pair "`"))
```