feat: add luno basic exchange configuration

closes #11928

freqtrade/exchange/__init__.py

@@ -43,4 +43,5 @@ from freqtrade.exchange.idex import Idex
 from freqtrade.exchange.kraken import Kraken
 from freqtrade.exchange.kucoin import Kucoin
 from freqtrade.exchange.lbank import Lbank
+from freqtrade.exchange.luno import Luno
 from freqtrade.exchange.okx import Okx

freqtrade/exchange/luno.py

@@ -0,0 +1,25 @@
+import logging
+
+from freqtrade.exchange import Exchange
+from freqtrade.exchange.exchange_types import FtHas
+
+
+logger = logging.getLogger(__name__)
+
+
+class Luno(Exchange):
+    """
+    Luno exchange class. Contains adjustments needed for Freqtrade to work
+    with this exchange.
+
+    Please note that this exchange is not included in the list of exchanges
+    officially supported by the Freqtrade development team. So some features
+    may still not work as expected.
+    """
+
+    _ft_has: FtHas = {
+        "ohlcv_candle_limit": 1000,
+        "ohlcv_has_history": False,  # Only provides the last 1000 candles
+        "always_require_api_keys": True,  # Requires API keys to fetch candles
+        "trades_has_history": False,  # Only the last 24h are available
+    }