Add backend: ln.tips (LightningTipBot) wallet (#921)

* add ln.tips

* add wallet

* revert lnbits

* make format

* .env.example

* listener fix

* reconnect fixed

* make format

* make format

lnbits/wallets/__init__.py

@@ -1,5 +1,6 @@
 # flake8: noqa
 
+
 from .cliche import ClicheWallet
 from .cln import CoreLightningWallet  # legacy .env support
 from .cln import CoreLightningWallet as CLightningWallet
@@ -9,6 +10,7 @@ from .lnbits import LNbitsWallet
 from .lndgrpc import LndWallet
 from .lndrest import LndRestWallet
 from .lnpay import LNPayWallet
+from .lntips import LnTipsWallet
 from .lntxbot import LntxbotWallet
 from .opennode import OpenNodeWallet
 from .spark import SparkWallet