Added solution of problem 1527

Author: kurpenok

src/solutions/s1527_patients_with_a_condition.py

@@ -0,0 +1,5 @@
+import pandas as pd
+
+
+def find_patients(patients: pd.DataFrame) -> pd.DataFrame:
+    return patients.loc[patients["conditions"].str.contains(r"(^| )DIAB1")]