change(mkpkglists): converted to use aurweb.db ORM

- Improved speed dramatically
- Removed mkpkglists sharness

Signed-off-by: Kevin Morris <kevr@0cost.org>

aurweb/benchmark.py

@@ -0,0 +1,21 @@
+from datetime import datetime
+
+
+class Benchmark:
+    def __init__(self):
+        self.start()
+
+    def _timestamp(self) -> float:
+        """ Generate a timestamp. """
+        return float(datetime.utcnow().timestamp())
+
+    def start(self) -> int:
+        """ Start a benchmark. """
+        self.current = self._timestamp()
+        return self.current
+
+    def end(self):
+        """ Return the diff between now - start(). """
+        n = self._timestamp() - self.current
+        self.current = float(0)
+        return n