adds support for sessions

examples/fetching_sessions.py

@@ -0,0 +1,13 @@
+from foxglove.client import Client
+
+token = "<YOUR API TOKEN HERE>"
+project_id = "<YOUR PROJECT ID HERE>"
+
+client = Client(token=token)
+
+sessions = client.get_sessions(project_id=project_id)
+
+for session in sessions:
+    print(
+        f"{session['id']} - {session['key']} - {len(session['recordings'])} recordings"
+    )