Renamed mini SF map.

Signed-off-by: Roland Bosa <roland.bosa@gmail.com>
Added reverser and flip controls, new naming mechanism

Also writing separate files for each slice.

Signed-off-by: Roland Bosa <roland.bosa@gmail.com>
Here's data for Yosemite

Bounding box:
-119.7075 … -119.504
37.6933 … 37.7753

Signed-off-by: Roland Bosa <roland.bosa@gmail.com>