Timeout error when using eotile to get S2 tile extent

[Fahdben]

Using eotile to convert S2 tile id to wkt extent will call an external geocoder API even when it's not needed.
These calls will cause timeouts in case of intensive use.

The geolocation function here https://github.com/CS-SI/eotile/blob/af395a0804af79ed1e7f25eb2cf3d875fcd85108/eotile/eotiles/utils.py#L82 should be used only when the user request is a location name like Toulouse. In case of a geometry input or a tile id input, this step should be skipped.

[savmickael]

I add a new function to handle this case: d431f6a