* Make percentage string values as floats in InfluxDB
Currently Z-wave and other compontents report an attributes battery
level as an integer, for example
```yaml
{
"is_awake": false,
"battery_level": 61,
}
```
However, some other components like Vera add the battery level as a
string
```yaml
{
"Vera Device Id": 25,
"device_armed": "False",
"battery_level": "63%",
"device_tripped": "False",
}
```
By removing any % signs in the field, this will send the value to
InfluxDB as an int, which can then be used to plot the data in graphs
correctly, like other percentage fields.
* Add tests and remove all trailing non digits
Adds tests and now removes all trailing non-numeric characters for
better use
* Update variable name for InfluxDB digit checks
Updates the variable used for the regex to remove trailing non digits
* Fix linting errors for InfluxDB component
Fixes a small linting error on the InfluxDB component
1ddcab5e26