add baseline and sqlite

tests/test_baseline.py

@@ -0,0 +1,16 @@
+import tempfile
+import unittest
+from pathlib import Path
+
+from fgai.baseline import BaselineStore
+from fgai.logs import parse_log_line
+
+
+class BaselineTests(unittest.TestCase):
+    def test_creates_profile_after_twelve_completed_windows(self):
+        with tempfile.TemporaryDirectory() as directory:
+            store = BaselineStore(str(Path(directory) / "baseline.sqlite3"))
+            for index in range(13):
+                store.ingest([parse_log_line(f"srcip=10.0.0.1 dstport={1000 + index} hitcount=2 sentbyte=5")], observed_at=1_700_000_000 + index * 300)
+            profiles = store.profiles({"10.0.0.1"})
+            self.assertEqual(profiles["10.0.0.1"]["samples"], 12)