Merge pull request #751 from DHI/pfs_multipolygon_perf_test

Pfs multipolygon test case

Author: ecomodeller

tests/performance/test_performance_pfs.py

@@ -0,0 +1,6 @@
+import mikeio
+
+
+def test_pfs_with_multipolygon() -> None:
+    pfs = mikeio.read_pfs("tests/testdata/pfs/multipolygon.pfs")
+    assert pfs.n_targets == 1