Read Csv File To List - Integers are read as Floats

When reading a CSV file into RF, the Library implicitly converts INTs to FLOATs.

Example CSV data:
```
1,"Some","Data"
2,"More","Stuff"
```

RF:
```robotframework
Example test
    ${csv_data}=    Read Csv File To List    ${CSV File}    quoting=${2}
``` 

Result:
```
[info] ${csv_data} = [[1.0, 'Some', 'Data'], [2.0, 'More', 'Stuff']]
```

