Add Bit2C exchange (#8767)

* Add Bit2C exchange
* Remove whitespace

---------

Co-authored-by: sha-265 <sha@mempool.party>

electrum/currencies.json

@@ -2,6 +2,9 @@
     "BitFlyer": [
         "JPY"
     ],
+    "Bit2C": [
+        "ILS"
+    ],
     "BitPay": [
         "AED",
         "AFN",

electrum/exchange_rate.py

@@ -358,6 +358,23 @@ class CoinGecko(ExchangeBase):
                      for h in history['prices']])
 
 
+class Bit2C(ExchangeBase):
+
+    async def get_rates(self, ccy):
+        json = await self.get_json('bit2c.co.il', '/Exchanges/BtcNis/Ticker.json')
+        return {'ILS': to_decimal(json['ll'])}
+
+    def history_ccys(self):
+        return CURRENCIES[self.name()]
+
+    async def request_history(self, ccy):
+        history = await self.get_json('bit2c.co.il',
+                                      '/Exchanges/BtcNis/KLines?resolution=1D&from=1357034400&to=%s' % int(time.time()))
+
+        return dict([(datetime.utcfromtimestamp(h[0]).strftime('%Y-%m-%d'), str(h[6]))
+                     for h in history])
+
+
 class CointraderMonitor(ExchangeBase):
 
     async def get_rates(self, ccy):