Implement basic hike functions

backend/app/tests/utils/hike.py

@@ -0,0 +1,12 @@
+from sqlmodel import Session
+
+from app.models.hike import Hike, HikeCreate
+from app.tests.utils.utils import random_lower_string
+
+
+def create_random_hike(db: Session, name: str = None) -> Hike:
+    if not name:
+        name = random_lower_string()
+
+    hike_in = HikeCreate(name=name)
+    return Hike.create(session=db, create_obj=hike_in)