add: txt file with center coordinates and subidvision ids

server/main.py

server/map_handler/__pycache__/add_lake.cpython-311.pyc

.../map_handler/__pycache__/get_measurements.cpython-311.pyc

server/map_handler/__pycache__/process_lake.cpython-311.pyc

server/map_handler/add_lake.py

server/map_handler/get_measurements.py

server/map_handler/lake_relations/mjosa_centers.txt

server/map_handler/process_lake.py