Python: Add sqlite3 test

Author: RasmusWL

python/ql/test/experimental/library-tests/frameworks/stdlib/pep249.py

@@ -0,0 +1,8 @@
+import sqlite3
+db = sqlite3.connect("example.db")
+
+# non standard
+db.execute("some sql", (42,))  # $ MISSING: getSql="some sql"
+
+cursor = db.cursor()
+cursor.execute("some sql", (42,))  # $ MISSING: getSql="some sql"