add benchmarks for testing sync vs async performances

- `async.py` tests dbapi
- `dbapi2_async.py` tests dbapi2

Author: douglasmdev

async.py

@@ -0,0 +1,33 @@
+import asyncio
+import os
+from time import perf_counter
+
+from libsql_client import create_client
+
+async def insert(client, t: str, s: str):
+    return await client.execute(f"INSERT INTO {t} VALUES ('{s}')")
+
+async def sync_demo(client):
+    initial = perf_counter()
+    for i in range(20):
+        await insert(client, "sync", f"{i}")
+    print(f"Sync code took {perf_counter() - initial} seconds to run.")
+
+async def async_demo(client):
+        initial = perf_counter()
+        requests = [insert(client, "async", f"{i}") for i in range(20)]
+        await asyncio.gather(*requests)
+        print(f"Async code took {perf_counter() - initial} seconds to run.")
+
+async def main():
+    url = os.getenv("TURSO_URL", "")
+    async with create_client(url) as client:
+        await client.execute("CREATE TABLE IF NOT EXISTS sync (name TEXT)")
+        await client.execute("CREATE TABLE IF NOT EXISTS async (name TEXT)")
+
+        await sync_demo(client)
+        await async_demo(client)
+
+
+
+asyncio.run(main())

dbapi2_async.py

@@ -0,0 +1,33 @@
+import asyncio
+import os
+from libsql_client.dbapi2 import connect
+from time import perf_counter
+
+async def insert(conn, t: str, s: str):
+    return await conn.execute(f"INSERT INTO {t} VALUES ('{s}')")
+
+async def sync_demo(conn):
+    initial = perf_counter()
+    for i in range(20):
+        await insert(conn, "sync", f"{i}")
+    await conn.commit()
+    print(f"Sync code took {perf_counter() - initial} seconds to run.")
+
+async def async_demo(conn):
+        initial = perf_counter()
+        requests = [insert(conn, "async", f"{i}") for i in range(20)]
+        await asyncio.gather(*requests)
+        await conn.commit()
+        print(f"Async code took {perf_counter() - initial} seconds to run.")
+
+async def main():
+    url = os.getenv("TURSO_URL", "")
+    conn = connect(url, uri=True)
+
+    await conn.execute("CREATE TABLE IF NOT EXISTS dbapi2_sync (t TEXT)")
+    await conn.execute("CREATE TABLE IF NOT EXISTS dbapi2_async (t TEXT)")
+
+    await sync_demo(conn)
+    await async_demo(conn)
+
+asyncio.run(main())