Add floors endpoint, function, and example

[Ghodot]

Adds a function to get the details of floors ascended / descended for a day.
I found the graph on https://connect.garmin.com/modern/daily-summary/2023-01-29, and did not find a way to get more than a day at a time

Response from the API (this wasn't a very active day ...)

-------------------- api.get_floors_data('2023-01-29') --------------------
{
    "startTimestampGMT": "2023-01-28T23:00:00.0",
    "endTimestampGMT": "2023-01-29T07:38:00.0",
    "startTimestampLocal": "2023-01-29T00:00:00.0",
    "endTimestampLocal": "2023-01-29T08:38:00.0",
    "floorsValueDescriptorDTOList": [
        {
            "key": "startTimeGMT",
            "index": 0
        },
        {
            "key": "endTimeGMT",
            "index": 1
        },
        {
            "key": "floorsAscended",
            "index": 2
        },
        {
            "key": "floorsDescended",
            "index": 3
        }
    ],
    "floorValuesArray": [
        [
            "2023-01-28T23:00:00.0",
            "2023-01-28T23:15:00.0",
            0,
            0
        ],
        [
            "2023-01-28T23:15:00.0",
            "2023-01-28T23:30:00.0",
            0,
            0
        ],
        ...
        [
            "2023-01-29T07:15:00.0",
            "2023-01-29T07:30:00.0",
            0,
            0
        ],
        [
            "2023-01-29T07:30:00.0",
            "2023-01-29T07:45:00.0",
            0,
            0
        ]
    ]
}
---------------------------------------------------------------------------

[psdupvi]

On the reports page, inspecting the endpoint, I see usersummary-service/stats/floors/daily/2023-01-23/2023-01-30 which looks like it returns multiple days, but I don't believe it returns details about them. I haven't actually tested it yet, but maybe that would be somewhere to investigate?

[
    {
        "calendarDate": "2023-01-23",
        "values": {
            "wellnessUserFloorsAscendedGoal": *,
            "wellnessFloorsAscended": *,
            "wellnessFloorsDescended": *
        }
    },
    {
        "calendarDate": "2023-01-24",
        "values": {
            "wellnessUserFloorsAscendedGoal":*, 
            "wellnessFloorsAscended": *,
            "wellnessFloorsDescended": *
        }
    },
    ...
    {
        "calendarDate": "2023-01-30",
        "values": {
            "wellnessUserFloorsAscendedGoal": *,
            "wellnessFloorsAscended": *,
            "wellnessFloorsDescended": *
        }
    }
]

[cyberjunky]

@Ghodot thanks a lot, I merged it, I changed the call to be called get_floors()