Merge branch 'stats' into 'master'

src/topupopt/data/buildings/dk/heat.py

src/topupopt/data/gis/identify.py

src/topupopt/data/gis/modify.py

src/topupopt/data/gis/utils.py

src/topupopt/data/misc/utils.py

src/topupopt/problems/esipp/blocks/converters.py

src/topupopt/problems/esipp/blocks/networks.py

src/topupopt/problems/esipp/blocks/prices.py

src/topupopt/problems/esipp/model.py

src/topupopt/problems/esipp/network.py

src/topupopt/problems/esipp/problem.py

src/topupopt/problems/esipp/resource.py

src/topupopt/problems/esipp/time.py

src/topupopt/problems/esipp/utils.py

tests/test_data_buildings_dk.py

tests/test_data_utils.py

tests/test_esipp_network.py

tests/test_esipp_prices.py

tests/test_esipp_problem.py

tests/test_esipp_resource.py