Support XINFO STREAM: Added the `active-time` field, and changed the meaning of `seen-time`.

[chayim]

Documented here.

[codrin-ch]

In order to support this, firstly we should support the previous updates regarding the FULL response as I see that there is no support for XINFO_STREAM_FULL it yet:

1. Starting with Redis version 6.0.0: Added the FULL modifier.
2. Starting with Redis version 7.0.0: Added the max-deleted-entry-id, entries-added, recorded-first-entry-id, entries-read and lag fields
3. Starting with Redis version 7.2.0: Added the active-time field, and changed the meaning of seen-time.